title: Nano-structured biphasic polymer film on the hair surface from PEGylated polymer latexes.
abstract: In this study, biphasic polymer latexes were synthesized by surfactant-free-emulsion polymerization of butyl methacrylate, poly(ethylene glycol) methyl ether methacrylate, and 2-(methacryloyloxy) ethyl trimethyl ammonium chloride. The latexes synthesized were composed of hydrophobic core phase and hydrophilic shell phase. Nano-structured film morphology could be obtained by annealing the biphasic polymer latexes between the two transition temperatures. It was found that the unique film morphology gave a viscoelastic property to the film. Scanning electron microscope and atomic force microscope images revealed that the biphasic polymer latexes deposited effectively onto the entire hair surface upon conditioning with 1 wt% polymer concentration in water. Consequently, they formed a smooth polymer membrane thereon, showing a high potential for a new hair cosmetic ingredient.
authors.affiliation: Amore-Pacific R&D Center, 314-1, Bora-ri, Giheung-eup, Yongin-si, Gyeonggi-do 449-726, South Korea.
authors.forename: Hee-Kyung
authors.initials: HK
authors.lastname: Ju
authors.forename: Jin-Woong
authors.initials: JW
authors.lastname: Kim
authors.forename: Ji-Young
authors.initials: JY
authors.lastname: Park
authors.forename: Hak-Hee
authors.initials: HH
authors.lastname: Kang
authors.forename: Seong-Geun
authors.initials: SG
authors.lastname: Oh
authors.forename: Kyung-Do
authors.initials: KD
authors.lastname: Suh
mesh_terms: D006197:Hair / Q000737:chemistry* / Q000648:ultrastructure; D006203:Hair Preparations; D006801:Humans; D008855:Microscopy, Electron, Scanning; D036103:Nanotechnology; D011108:Polymers / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D006203:Hair Preparations; D011108:Polymers