576 JOURNAL OF COSMETIC SCIENCE Figure 5. AFM images of human hairs treated with biphasic polymer latexes: (a,b) a naked hair. (c,d) a hair treated with NAS300-M5 at room temperature. (e,10 a hair treated with NAS300-M5 at 80øC for 10 min. Top view: a, c, e. 3D view: b, d, f. (Project No. 2000-N-NL-01-C-270) of the Ministry of Science and Technology, South Korea. The authors express the deepest appreciation to all concerned with the develop- ment of Nanoaquasome TM from the biphasic polymer latexes. REFERENCES (1) R. G. Chen and P.M. Cook, Hair care compositions, US Patent 6299864. (2) S. Martiny, Acetylenic polymers for hair styling products, Int. J. Cosmet. Sci., 24, 125-134 (2002). (3) P. Hossel, R. Dieing, R. Norenberg, A. Pfau, and R. Sander, Conditioning polymers in today's shampoo formulations--Efficiency, mechanism and test methods, Int. J. Cosmet. Sci., 22, 1-10 (2000).

POLYMER LATEXES ON THE HAIR SURFACE 577 (4) K. Yahagi and T Suzuki, Microlatex hair cosmetic composition, US Patent 4985239. (5) K. Yahagi and T. Suzuki, Hair cosmetic composition comprising submicron polymer particles, US Patent 4798721. (6) S. A. Young and M. A. Snyder, Hair styling shampoos containing organic oil, US Patent 6248315. (7) M.A. Snyder and J. R. Schwartz, Hair styling shampoos containing low Tg latex polymer particles, US Patent 6268431. (8) S. W. Park, J. W. Kim, J. B. Jun, and K. D. Suh, Nanostructured latex films from poly(butyl meth- acrylate) latex crosslinked with poly(ethylene oxide)-poly (propylene oxide)-poly(ethylene oxide) tri- block macrocrosslinker, Colloid. Polym. Sci., 280, 963-967 (2002). (9) J. W. Kim, J. Y. Park. J. B. Jun, I. S. Chang, and K. D. Suh, Fine polystyrene latexes with reactive poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock macrosurfactants in modified miniemulsion polymerization, J. Appl. Polym. Sd., 85,328-332 (2002). (10) A. Tuncel, Emulsion copolymerization of styrene and poly(ethylene glycol) ethyl ether methacrylate, Polymer, 41, 1257-1267 (2000). (11) Z. Liu and H. Xiao, Soap-free emulsion copolymerisation of styrene with cationic monomer: Effect of ethanol as a cosolvent, Polymer, 41, 7023-7031 (2000). (12) E. Perez and J. Lang, Internal structure of core-shell latex particles studied by fluorescence nonradiative energy transfer, Langmuir, 12, 3180-3187 (1996). (13) E. Perez and J. Lang, Flattening of latex film surface: Theory and experiments by atomic force microscopy, Macromolecules, 32, 1626-1636 (1999). (14) T. Tamai, P. Pinenq, and M. A. Winnik, Effect of cross-linking on polymer diffusion in poly(butyl methacrylate-co-butyl acrylate) latex films, Macromolecules, 32, 6102-6110 (1999). (15) A. Goudy, M. L. Gee, S. B iggs, and S. Underwood, Atomic force microscopy study of polystyrene latex film morphology: Effect of aging and annealing, Langmuir, 11, 4454-4459 (1995). (16) J. Feng, E. Odrobina, and M. A. Winnik, Effect of hard polymer filler particles on polymer diffusion in a low-Tg latex film, Macromolecules, 31, 5290-5299 (1998). (17) O. Pekcan and E. Arda, Site percolation model for latex film formation in soft polymer matrix, J. Colloid Inter. face Sci., 250, 471-477 (2002). (18) B. Akkisk, O. Pekcan, and E. Arda, Molecular weight effect on latex film formation induced by solvent vapor: An optical transmission study, J. Colloid Interface Sci., 245,397-401 (2002). (19) E. Odrobina, J. Feng, S. Kawaguchi, M. A. Winnik, M. Neag, and E. F. Meyer, Characterization of the miscibility of poly(butyl methacrylate) with a nonylphenol ethoxylate surfactant and with various poly(ethylene glycol) oligomers, Macromolecules, 31, 7239-7247 (1998).