Prof WW Focke: In International Journals and Books

2014

1. WW Focke, M Atanasova, SS Mkhize, R Storey, O Del Fabbro and E Muller. Facile synthesis of copper antimonite. Chemical Engineering Communications 201 (2), (2014) 153-159. DOI: 10.1080/00986445.2012.762629. http://www.tandfonline.com/doi/full/10.1080/00986445.2012.762629

2. WW Focke, L Moyo, FJWJ Labuschagne, NG Hoosen, S Ramjee and M Saphiannikova. Anomalous shear viscosity-temperature behaviour of jojoba oil - LDH-stearate suspensions. Colloids and Surfaces A: Physicochemical and Engineering Aspects 443C (2014), 391-397. http://dx.doi.org/10.1016/j.colsurfa.2013.11.050

3. WW Focke, H Muiambo, W Mhike, H Kruger and O Ofosu. Flexible PVC flame retarded with expandable graphite. Polymer Degradation and Stability 100 (2014) 63–69. http://www.sciencedirect.com/science/article/pii/S0141391013004291 http://dx.doi.org/10.1016/j.polymdegradstab.2013.12.024

4. SM Tichapondwa, WW Focke, O Del Fabbro and RF Sandenbergh. Suppressing hydrogen evolution by aqueous silicon powder dispersions through the introduction of additional cathodic reaction. Chemical Engineering Communications. Volume 201, Issue 4, (2014) 501-515 DOI: 10.1080/00986445.2013.777902

5. MT Atanasova, AM Strydom, CJH Schutte, LC Prinsloo and WW Focke. Crystal structure and magnetic properties of CuSb2O4. Journal of Materials Science 49 (9) (2014) 3497-3510 DOI 10.1007/s10853-014-8063-0

6. D Gnanasekaran and BS Reddy. A facile synthesis of mixed soft-segmented poly(urethane-imide)-polyhedral oligomeric silsesquioxone hybrid nanocomposites and study of their structure-transport properties. Polymer International 63(3), (2014) 507–513

7. A Macheca, D Gnanasekaran and WW Focke. Surfactant-free dimer fatty acid polyamide/montmorillonite bio-nanocomposites. Colloid and Polymer Science: 292(3) (2014) 669-676 DOI: 10.1007/s00396-013-3122-7.http://link.springer.com/article/10.1007%2Fs00396-013-3122-7

8. WW Focke, H Badenhorst, W Mhike, HJ Kruger and D Lombaard. Characterization of commercial expandable graphite fire retardants. Thermochimica Acta 584 (2014) 8–16 http://dx.doi.org/10.1016/j.tca.2014.03.021

9. WW Focke, H Badenhorst, S Ramjee, HJ Kruger, R Van Schalkwyk and B Rand. Graphite foam from pitch and expandable graphite. Carbon 73 (2014) 41–50. http://dx.doi.org/10.1016/j.carbon.2014.02.035

10. WW Focke, HJ Kruger, W Mhike, A Taute, A Roberson and O Ofosu. Polyethylene flame retarded with expandable graphite and a novel intumescent additive. Journal of Applied Polymer Science Volume 131, Issue 13, 5 July 2014. http://onlinelibrary.wiley.com/doi/10.1002/app.40493/abstract DOI: 10.1002/app.40493

11. PH Massinga Jr., WW Focke, O Del Fabbro and H-J Radusch. EVA Nanocomposites based on South African Koppies clay. Journal of Vinyl and Additive Technology, (20(3) 2014, 143–151. http://onlinelibrary.wiley.com/doi/10.1002/vnl.21342/abstract

12. M Seerane, H Chikwanda, WW Focke and R Machaka. A Study of Solvent Debinding Variables on Ti6Al4V Green Bodies. Advanced Materials Research 1019 (2014) 204-209. doi:10.4028/www.scientific.net/AMR.1019.204

13. W Mhike, IVW Ferreira, J Li, SI Stoliarov and WW Focke. Flame retarding effect of graphite in rotationally molded polyethylene/graphite composites. Journal of Applied Polymer Science

14. H Kruger, WW Focke, W Mhike, A Taute, A Roberson and O Ofosu. Cone calorimeter study of polyethylene flame retarded with expandable graphite and intumescent fire retardant additives. Journal of Fire Sciences. http://jfs.sagepub.com/content/early/2014/06/17/0734904114538755.full.pdf

2013

1. SR Hlatshwayo, S Ramjee, WW Focke, B Rand, and N Manyala. Rheological behavior and thermal properties of pitch/poly(vinyl chloride) blends. Carbon 51 (2013) 64-71. /dx.doi.org/10.1016/j.carbon.2012.08.012

2. AS Chetty, V Vargha, A Maity, FS Moolman, C Rossouw, R Anandjiwala, L Boguslavsky, D Mancama and WW Focke. Development of thermoresponsive poly(propylene-g-N-isopropylacrylamide) non-woven 3D scaffold for smart cell culture using oxyfluorination-assisted graft polymerisation. Colloids and Surfaces A: Physicochemical and Engineering Aspects 419 (2013) 37-45. /dx.doi.org/10.1016/j.colsurfa.2012.11.046

3. L Moyo, WW Focke, D Heidenreich, FJWJ Labuschagne and H.-J. Radusch. Properties of layered double hydroxide micro- and nanocomposites. Materials Research Bulletin 48 (2013) 12181227. /dx.doi.org/10.1016/j.materresbull.2012.11.040

4. PP Magampa, N Manyala and WW Focke. Properties of graphite composites based on natural and synthetic graphite powders and a phenolic novolac binder. Journal of Nuclear Materials 436 (13) (2013) 7683 /dx.doi.org/10.1016/j.jnucmat.2013.01.315

5. SM Tichapondwa, WW Focke, O Del Fabbro and E Muller. Suppressing Hydrogen Evolution by Aqueous Silicon Powder Dispersions by Controlled Silicon Surface Oxidation. Propellants, Explosives, Pyrotechnics, Volume 38, Issue 1, pages 4855, February 2013. DOI: 10.1002/prep.201100111

6. A Mollova, I Kolesov, R Androsch, FJWJ Labuschagne, WW Focke and S Sergio. Funari. Crystallization of nanocomposites of an isotactic random butene-1/ethylene copolymer and layered double hydroxide. Polym. Bull. (2013) 70:31153128. DOI 10.1007/s00289-013-1011-3

7. H Badenhorst, B Rand, and WW Focke. A generalized solid state kinetic expression for reaction interface-controlled reactivity, Thermochimica Acta, 562 (2013) 1-10

8. H Badenhorst and WW Focke. Comparative analysis of graphite oxidation behaviour based on microstructure. Journal of Nuclear Materials 442 (1-3) , pp. 75- DOI: 10.1016/j.jnucmat.2013.08.053

9. Walter W. Focke, Nontete Suzan Nhlapo and Eino Vuorinen. Thermal analysis and FTIR studies of volatile corrosion inhibitor model systems. Corrosion Science 77 (2013) 8896. DOI: 10.1016/j.corsci.2013.07.030

10. I Kolesov, R Androsch, D Mileva, W Lebek, A Benhamida, M Kaci and WW Focke. Crystallization of a polyamide 11/organo-modified montmorillonite nanocomposite at rapid cooling, Colloid and Polymer Science (2013) Volume 291, Issue 11, pp 2541-2549, DOI 10.1007/s00396-013-2977-y

2012

1. W Mhike, WW Focke and AS Luyt. Thermally conductive phase-change materials for energy storage based on low-density polyethylene, soft wax and graphite. Thermochimica Acta 527 (2012) 75– 82. doi:10.1016/j.tca.2011.10.008

2. WW Focke, MH Ackermann and RLJ Coetzer. Mixture rules based on power means and generalized q-fractions. Journal of Chemical Engineering of Japan 25(1) (2012) 1-8. doi:10.1252/jcej.11we003

3. MH Ackermann, WW Focke and RLJ Coetzer. Analysis of the q-fractions weighted power mean mixture models. Journal of Chemical Engineering of Japan 25(1) (2012) 9-20.cdoi:10.1252/jcej.11we004

4. HF Muiambo and WW Focke. Ion Exchanged Vermiculites with Lower Expansion Onset Temperatures. Molecular Crystals and Liquid Crystals, Volume 555, Issue 1 pp. (2012) 65-75 | DOI: 10.1080/15421406.2012.634367

5. L Moyo, WW Focke, FJWJ Labuschagne and SVerryn. Layered Double Hydroxide Intercalated with Sodium Dodecyl Sulfate. Molecular Crystals and Liquid Crystals, Volume 555, Issue 1 pp. 51-64 | DOI: 10.1080/15421406.2012.634366

6. RD Merckel, WW Focke, MM Sibanda, P Massinga and NAS Crowther. Co-Intercalation of Insecticides with Hexadecyltrimethylammonium Chloride in Mozambican Bentonite. Molecular Crystals and Liquid Crystals, Volume 555, Issue 1 pp. 76-84 | DOI: 10.1080/15421406.2012.634682

7. WW Focke, F Kajzar and I Rau. Guest Editors’ Foreword. Molecular Crystals and Liquid Crystals, Volume 554, Issue 1 pp. 1-3 | DOI: 10.1080/15421406.2012.632731

8. PH Massinga Jr. and WW Focke. Intercalating Cationic Surfactants in Koppies Bentonite. Molecular Crystals and Liquid Crystals Volume 555, Issue 1, April 2012, pages 85-93

9. JG Clark, B Rand, F Hayes, W Barnard and S Lubhelwana. The effect of an iron oxide catalyst (Fe₃O₄) on the characteristics of waxy oil coke. Fuel 94 (2011) 523-531. doi:10.1016/j.fuel.2011.09.051

10. WW Focke, I Van der Westhuizen, ABL Grobler, KT Ntshoane, JK Reddy and AS Luyt. The effect of synthetic antioxidants on the oxidative stability of biodiesel. Fuel 94 (2012) 227–233

11. A Manhique and WW Focke. Layered double hydroxides as nano additives in poly(e-caprolactone). Mol. Cryst. Liq. Cryst., Vol. 556: pp. 114–123, 2012. DOI: 10.1080/15421406.2012.635925

12. H Badenhorst, B Rand and WW Focke. Geometric effects control isothermal oxidation of graphite flakes has now been published in the following paginated issue of Journal of Thermal Analysis and Calorimetry: Volume 108, Issue 3 (2012), Page 1141-1150. DOI: 10.1007/s10973-012-2302-x

13. G Papole, WW Focke and N Manyala. Characterization of medium-temperature Sasol-Lurgi gasifier coal tar pitch. Fuel 98 (2012) 243-248. /dx.doi.org/10.1016/j.fuel.2012.04.002

14. NS Nhlapo, WW Focke and E Vuorinen. TGA-FTIR study of the vapors released by triethylamine-acetic acid mixtures. Thermochimica Acta, /dx.doi.org/10.1016/j.tca.2012.07.02

15. L Moyo, WW Focke, D Heidenreich, FJWJ Labuschagne and H-J Radusch. Properties of layered double hydroxide micro- and nanocomposites. Materials Research Bulletin 48 (2013) 1218–1227. /dx.doi.org/10.1016/j.materresbull.2012.11.040

2011

1. S Joseph and WW Focke. Poly (Ethylene-vinyl co-vinyl acetate) /Clay nanocomposites: mechanical, morphology and thermal behavior. Polymer Composites, 32(2), 2011, 252-258. DOI: 10.1002/pc.21043

2. PJ Oberholster, N Musee, A-M Botha, PK Chelule, WW Focke and P Ashton. Assessment of the effect of nanomaterials on sediment-dwelling invertebrate Chironomus tentans larvae. Ecotoxicology and Environmental Safety 74 (2011) 416–423

3. WW Focke, RP Mashele and NS Nhlapo. Stabilization of LDPE films containing metal stearates as photodegradants. Journal of Vinyl and Additive Technology, 17 (2011) 21-27

4. SM Tichapondwa, WW Focke, O Del Fabbro, S Mkhize and E Muller. Suppressing H₂ Evolution by Silicon Powder Dispersions. J Energetic Materials, 29(4), 2011, pp326-343. DOI: 10.1080/07370652.2010.529100

5. AJ Manhique, WW Focke and C Madivate. Titania recovery from low-grade titanoferous minerals. Hydrometallurgy 109 (2011) 230–236. (doi:10.1016/j.hydromet.2011.07.008)

6. MM Sibanda, WW Focke, FJWJ Labuschagne, L Moyo, NS Nhlapo, A Maity, H Muiambo, P Massinga, NC Crowther, M Coetzee and GW Brindley. Degradation of insecticides used for indoor spraying in malaria control and possible solutions. Malaria Journal 2011, 10:307 (18 October 2011) http://www.malariajournal.com/content/10/1/307

7. WW Focke and W Van Pareen. Polypropylene-based long-life insecticide-treated mosquito netting. Journal of Polymer Engineering. Volume 31, Issue 6-7, Pages 521–529, ISSN (Online) 2191-0340, ISSN (Print) 0334-6447, DOI: 10.1515/POLYENG.2011.102, November 2011

8. K Ilunga, O Del Fabbro, L Yapi and WW Focke. The effect of Si-Bi₂O₃ on the ignition of the Al-CuO thermite. Powder Technology 205 (2011) 97–102. /dx.doi.org/10.1016/j.powtec.2010.08.071

2010

1. WW Focke and I Van der Westhuizen. Oxidation induction time (OIT) and oxidation onset temperature (OOT) of polyethylene in air. Testing Gimzewski's postulate. J Therm Anal Calorim (2010) 99:285–293 (DOI 10.1007/s10973-009-0097-1)

2. H Badenhorst, B Rand and WW Focke. Modelling of natural graphite oxidation using thermal analysis techniques. J Therm Anal Calorim (2010) 99:211–228 (DOI 10.1007/s10973-009-0095-3)

3. H Rutto and WW Focke. Thermo-Mechanical Properties of Urea-Based Pattern Molding Compounds for Investment Casting. International Polymer Processing, 2010/01, pp 15-22

4. RLJ Coetzer and WW Focke. Optimal designs for estimating the parameters in weighted power-mean-mixture models. Journal of Chemometrics 24 (1) (2010) 34–42

5. WE Cloete and WW Focke. Photoinitiated Cyanoacrylates for Fast Underwater Bonding. International Journal of Adhesion & Adhesives 30 (2010) 208–213. doi:10.1016/j.ijadhadh.2010.01.002

6. D Swanepoel, O Del Fabbro, WW Focke and C Conradie. Manganese as Fuel in Slow-Burning Pyrotechnic Time Delay Compositions. Propellants Explos. Pyrotech. 2010, 35, 105 – 113

7. S Joseph, WW Focke and S Thomas. Compatibilizing action of a poly(styrene-butadiene) triblock copolymer in ABS/PET-G blends. Composite Interfaces 17 (2010) 175–196

8. WW Focke, NS Nhlapo, L Moyo and SMC Verryn. Thermal Properties of Lauric- and Stearic Acid intercalated Layered Double Hydroxides. Molecular Crystals and Liquid Crystals, Volume 521, 168

9. PH Massinga Jr., WW Focke, PL De Vaal, M Atanasova. Alkyl ammonium intercalation of Mozambican bentonite. Applied Clay Science 49 (2010) 142–148

10. HF Muiambo, WW Focke; M Atanasova; I Van der Westhuizen; LR Tiedt. Thermal properties of sodium-exchanged Palabora vermiculite. Applied Clay Science 50 (2010) 51–57. /dx.doi.org/10.1016/j.clay.2010.06.023

2009

1. T Gcwabaza, SS Ray, WW Focke and A Maity. Morphology and properties of nanostructured materials based on polypropylene/poly(butylene succinate) blend and organoclay. European Polymer Journal 45 (2009) 353–367

2. MH Makgato, LJ Moitsheki, L Shoko, BL Kgobane, DL Morgan and WW Focke. Alkali-assisted coal extraction with polar aprotic solvents. Fuel Processing Technology, 90 (2009) 591-598

3. B Magagula, N Nhlapo and WW Focke. Mn₂Al-LDH- and Co₂Al-LDH-stearate as photo degradants for LDPE film. Polymer Degradation and Stability 94 (2009), pp. 947-954

4. SS Ochigbo, AS Luyt and WW Focke. Latex derived blends of poly(vinyl acetate) and natural rubber: thermal and mechanical properties. Journal of Materials Science, 44(12) (2009) 3248 - 3254 (DOI: 10.1007/s10853-009-3435-6)

5. WW Focke, Weighted-Power-Mean Mixture Model for the Gibbs Energy of Fluid Mixtures. Ind. Eng. Chem. Res. 48 (2009) 5537–5541

6. WW Focke, S Joseph, J Grimbeek, G Summers and B Kretzschmar. Mechanical properties of ternary blends of ABS + HIPS + PETG. Polymer-Plastics Technology and Engineering, 48 (2009) 814-820

7. WW Focke, D Molefe, FJWJ Labuschagne and S Ramjee. The influence of stearic acid coating on the properties of magnesium hydroxide, hydromagnesite and hydrotalcite powders. J. Mat. Sci. 44 (2009) 6100-6109. DOI 10.1007/s10853-009-3844-6

2008

1. N Nhlapo, T Motumi, E Landman, SMC Verryn and WW Focke. Hydrotalcite: surfactant-assisted fatty acid intercalation of layered double hydroxides. Journal of Materials Science, 43(3) (2008) 1033-1043

2. M Burns, U Wagenknecht, B Kretzschmar and WW Focke. Effect of hydrated fillers and red phosphorus on the limiting oxygen index (LOI) of EVA-PVB and LDPE-EVAL blends. Journal of Vinyl and Additive Technology, 14 (2008) 113-119

3. L Moyo, N Nhlapo and WW Focke. A critical assessment of methods for intercalating anionic surfactants in layered double hydroxides. Journal of Materials science 43 (2008) 6144-6158

4. WW Focke. Correlating Thermal Conductivity Data for Ternary Liquid Mixtures. International Journal of Thermophysics 29(4) 2008, Pages 1342-1360

5. WW Focke. Plastic film litter: Is there really a role for oxo-(bio)degradation? Journal of Vinyl and Additive Technology, 14 (2008) 153-154

2007

1. EP Landman and WW Focke. Poly(vinyl sulfonate) intercalation into stearate intercalated layered double hydroxides. SAJS Vol. 102 (11/12) (2007) 581-584

2. C Sandrock, WW Focke and S Kok. Weighted-power-mean mixture model: Empirical mixing laws for liquid viscosity. Ind. Eng. Chem. Res. 46 (2007) 4660-4666

3. WW Focke. Mixture model for correlating excess enthalpy data, J. Chem. Eng. Jpn., 40 (2007) 295-303

4. S Pecku, TL Van der Merwe, H Rolfes and WW Focke. Starch as antiblocking agent in breathable polyurethane membranes, Journal of Vinyl and Additive Technology, 13 (4) (2007) 215-220

5. L Kalombo, O Del Fabbro, C Conradie and WW Focke. Sb₆O₁₃ and Bi₂O₃ as oxidants for Si in pyrotechnic time delay compositions. Propellants, Explosives, Pyrotechnics 32(6) (2007) 454-460

6. WW Focke, C Sandrock and S Kok. Weighted-power-mean mixture model: Empirical mixing laws for liquid viscosity. Ind. Eng. Chem. Res. 46 (2007) 4660-4666

2006

1. E Karakatsanis, WW Focke and G Summers. Surfactant-assisted micro-mixing of melamine and wax particles, Journal of Applied Polymer Science, 99(5) (2006) 2554-2557

2. WW Focke and M Grobler. Low-pressure vapor-liquid data reduction using only equilibrium composition data. J. Chem. Eng. Japan, 39 (2) (2006) 114-120

3. C Sita, M Burns and WW Focke. Tensile properties of Thermoplastic Starch-PVB blends, J. Appl. Polym. Sci., 101 (3) (2006) 1751-1755

4. EP Landman and WW Focke. Stearate intercalated layered double hydroxides: effect on the physical properties of dextrin-alginate films. Journal of Materials Science, 41 (8) (2006) 2271 – 2279

5. N Pieterse, WW Focke, E Vuorinen and I Rácz (2006). “Estimating the Vapour Pressures of Volatile Corrosion Inhibitors from Isothermal Thermogravimetric Data”. Corrosion Science, 48 (8) 1986-1995

2005

1. WW Focke. Neural network averaging. Neural Computation 18 (2005) 1-9

2004

1. FS Moolman, H Rolfes, SW Van der Merwe. and WW Focke. (2004). Optimization of perfluorocarbon emulsion properties for enhancing mass transfer in a bio-artificial liver support system. Biochem. Eng. J.19(3): 237-250

2. IMM Ricco, C Conradie and WW Focke. Alternative Oxidants for Silicon Fuel in Time Delay Detonators, Combustion Science and Technology, 176 (9) (2004) 1565-1575

3. WW Focke. (2004). Excess Gibbs Energy of Binary Liquid Mixtures and the Wong-Sandler Postulates, AIChE J. 50 (12) 3284-3289

4. WW Focke and B Du Plessis. Correlating Multicomponent Mixture Properties with Homogeneous Rational Functions. Industrial and Engineering Chemistry Research. 43(26) (2004) 8369-8377.

5. E Vuorinen, WW Focke and E Kálmán. Introduction to vapour phase corrosion inhibitors in metal packaging. Surface Engineering, 20 (4) (2004) 281-284

2003

1. FJWJ Labuschagné and WW Focke. Metal Catalysed Intumescence: Characterisation of the Thermal Decomposition of Calcium Gluconate Monohydrate, J. Mat. Sci. 38 (6) (2003) 1249-1254.

2. A Manhique, Z Kwela and WW Focke. The De Wet Process for the Beneficiation of Zircon: Optimization of the Alkali Fusion Step, Ind. Eng. Chem. Res. 42 (2003) 777-783

3. CJR Verbeek and WW Focke. Modelling the Young’s modulus of platelet reinforced thermoplastic sheet composites, Composites: Part A 33 (2003) 1697 – 1704

4. FJWJ Labuschagné, SMC Verryn and WW Focke. X-ray Powder Diffraction Data for Ammonium d-Gluconate, C₆H₁₁O^-₇NH₄⁺, Powder Diffr., 18(2), (2003) 162-164

5. E Karakatsanis, WW Focke and G Summers. Low Molecular Mass Poly(styrene-co-acrylic acid) Amphiphilic Block Copolymers: Synthesis and Characterization, Macromol. Symp. 193 (2003) 187-193

6. WW Focke. A revised equation for estimating the vapour pressure of low-volatility substances from isothermal thermogravimetric data, J. Therm. Anal. Cal. 74 (2003) 1107-1118

7. N Pieterse and WW Focke. Diffusion controlled evaporation through a stagnant gas: Estimating low vapour pressures from thermogravimetric data, Thermochimica Acta., 406, 1-2 (2003) 191-198

8. WA Germishuizen, WW Focke and AT Visser, A Laboratory Optimisation of a urea-formaldehyde Soil Stabiliser, SA J Chem. Eng. 15 (1) (2003) 1-16

2002

1. II Eyenga, WW Focke, LC Prinsloo, et al. Photodegradation: A solution for the shopping bag "visual pollution" problem? MACROMOLECULAR SYMPOSIA Volume: 178 Pages: 139-152 Published: 2002

2. WA Germishuizen, WW Focke and AT Visser. A Laboratory Study of Soil Stabilisation with an Urea-Formaldehyde Resin, Journal of the South African Institution of Civil Engineers 44 (2002) 9-12

3. A Kruger, WW Focke, Z Kwela and R Fowles. Effect of Ferrous and Ferric Iron Impurities on the Crystallization of Gypsum and Sludge formation in Wet-Process Phosphoric Acid, Chemical Engineering Communications 189 (2002) 684 – 694

4. WW Focke, A Manhique and R Carter. Lattice Model for Estimating the Opacity of White Coatings, J. Am. Ceram. Soc. 85 [5] 1139-44 (2002)

5. M Govender, WW Focke, AT Tolmay and D Graefe. Evaluation of commercial plastics purging compounds on a laboratory film blower. SA J Chem. Eng. 14 (1) (2002) 16-27

6. E Vuorinen, WW Focke, A Gandini, S W-F and M Govender. Sythesis of adhesive polyethylene polymers using free radical grafting in a compounding extruder. SA J Chem. Eng. 14 (2) (2002) 1-5

2001

1. WW Focke. Local Composition Structured Fluid Model for the Excess Gibbs Energy of Liquid Mixtures, Ind. Eng. Chem. Res. 40 (2001) 2971-2981

2. A Kruger, WW Focke, Z Kwela and R Fowles. Effect of Ionic Impurities on the Crystallization of Gypsum in Wet-Process Phosphoric Acid. Ind. Eng. Chem. Res. 40 (2001) 1364-1369

3. WW Focke. A New Three-parameter Activity Coefficient Correlation for Modelling Liquid Phase Behaviour. Part 2: Application to binary Vapour-Liquid Equilibrium at low Pressures, SA J Chem. Eng. 13 (1) (2001) 1-16. ( http://www.saiche.co.za/SAJChE/index.htm)

4. K Bisschoff and WW Focke. Oxygenated Hydrocarbon Compounds as Flame Retardants for Polyester Fabric, in GL Nelson and CA Wilkie (Eds.), Fire and Polymers: Materials and Solutions for Hazard Prevention, ACS Symp. Ser. No. 297, Oxford University Press, Oxford, 2001, pp 240-250

5. II Eyenga, WW Focke, LC Prinsloo and AT Tolmay. Photodegradation: A Solution for the Shopping Bag Visual Pollution Problem? S. A. Journal of Science, 97 (2001) 359-362

2000

1. FJWJ Labuschagne, WW Focke and CA Strydom. Strong base catalysed intumescent flame retardants, J. Mat. Sci. Let. 19 (2000) 617

2. FJWJ Labuschagné, WW Focke and CA Strydom. Metal Catalyzed Intumescent Flame Retardant Systems, PMSE 220 (2000) 2

3. WW Focke. A New Three-parameter Activity Coefficient Correlation for Modeling Liquid Phase Behaviour. Part 1: Theory, SA J Chem. Eng. 12 (1) (2000) 35-46

1999

1. WJ De Wet and WW Focke. Improved Sulphuric Acid Sulphation of Refractory Zirconia by Addition of Sodium Sulphate, SA J Chem. Eng. 11 (2) (1999) 29-37

1997

1. WW Focke, CA Strydom and N Bartie. Thermal Analysis of Commercial Inorganic Flame Retardants, SA J Chem. Eng. 9 (2) (1997) 41-51

1996

21. WW Focke. The Opacity of Plastic Films: An Empirical Correlation, SA J Chem. Eng. 8 (1996) 1-7

1995

1. WW Focke. Heat Transfer Analogies for Plate Heat Exchangers, SA. J. Chem, Eng. 7 (1) (1995) 1-15

1991

1. PGJM Nuijens, WW Focke and I Olivier. Flow Distribution in Multi-compartment Equipment with Linear Supply and Discharge Manifolds, SA. J. Chem. Eng. 3 (2) (1991) 26-50

2. WW Focke, MS Smit, AT Tolmay, LS Van der Walt and WL Van Wyk. Differential Scanning Calorimetry Analysis of Thermoset Cure Kinetics: Phenolic Resole Resin, Pol. Eng. Sci. 31 (1991) 1665

3. WW Focke and GS Van Eeden. Prediction of Cure Time for a Rubber Cement Used for Conveyor Belt Splicing. J. Appl. Pol. Sci. 42 (1991) 591

4. AT Tolmay, AT and WW Focke. Microwave Asssited Curing of Phenolic Resole, SA J Chem. Eng. 3 (1) (1991) 1

1990

1. WW Focke. Approximate Design Equations for the Membrane Separation of a Two-component Mixture in a Single-Stage Process, S.A.J. Chem. Eng. 2 (1990) 1-14

2. CP Nicolaides, JH Opperman, MS Scurrell and WW Focke. Metathesis of Fatty Esters Derived from South African Sunflower Oil, JAOCS 67 (1990) 362

1989

1. Y Wei, X Tang, Y Sun, and WW Focke. A Study of the Mechanism of Aniline Polymerization, J. Polym. Sci., Part A, Polym. Chem., Vol. 27, pp. 2385-2396, 1989

2. Y Wei, WW Focke, GE Wnek, A Ray and AG MacDiarmid. Synthesis and Electrochemistry of Alkyl-ring Substituted Polyanilines, J. Phys. Chem. 93 (1989) 495-499

1988

1. RK Shah and WW Focke. Plate Heat Exchangers and Their Design Theory, in RK Shah, EC Subbarao and RA Mashelkar (Eds.), Heat Transfer Equipment Design, Hemisphere Publishing, New York, New York, (1988)

2. WW Focke and GE Wnek. Conduction Mechanisms in Polyaniline (Emeraldine Salt), J. Electroanal Chem. 256 (1988) 343

3. A Ray, AG MacDiarmid, J-C Chiang, Y Wei, WW Focke, GE Wnek, and AJ Epstein. Electrochemistry of Ring-Substituted Polyanilines: Effect of Substituents on Electronic Properties, Mol. Cryst. Liq. Cryst., Vol. 3, pp. 245-246, 1988

1987

1. WW Focke and GE Wnek. Electrochemistry of Polyaniline: Consideration of a Dimer Model, in P N Prasad and D R Ulrich (Eds.) Nonlinear Optical and Electroactive Polymers, Plenum Press, New York, 1987, pp. 315 - 324

2. WW Focke, GE Wnek and Y Wei. Influence of Oxidation State, pH and Counterion on the Conductivity of Polyaniline, J. Phys. Chem. 91 (1987) 5813

1986

1. WW Focke and PG Knibbe. Flow Visualization in parallel plate ducts with Corrugated Walls. J Fluid Mech. 165 (1986) 73

2. WW Focke. Selecting Optimum Plate Heat Exchanger Surface Patterns. J. Heat Transfer 108 (1986) 153

1985

1. WW Focke, J Zachariades and I Oliver. The Effect of the Corrugation Inclination Angle on the Thermohydraulic Performance of Plate Heat Exchanges, Int. J. Heat Mass Transfer 28 (1985) 1469

2. WW Focke. Asymmetrically Corrugated Plate Heat Exchanger Plates. Int. Comm. Heat Mass Transfer 12 (1985) 67

1984

1. WW Focke and PGJM Nuijens. Velocity Profile Caused by a High Porosity spacer between Parallel Plates (Membranes). Desalination 49 (1984) 243-253

1983

1. WW Focke. On the Mechanism of Transfer Enchancement by Eddy Promoters. Electochimica Acta, 28 (1983) 1137

2. WW Focke. Turbulent Convective Transfer in Plate Heat Exchangers. Int. Comm. Heat Mass Transfer 10 (1983) 201

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