Premium
Transparent organic materials made from copolymerization of styrene with urethane‐methacrylate macromer. I. Monomacromer system
Author(s) -
Li Yongjin,
Wang Gongshan,
Yan Deyue
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20010418)80:3<348::aid-app1106>3.0.co;2-4
Subject(s) - macromonomer , copolymer , styrene , materials science , methacrylate , polymer chemistry , methyl methacrylate , composite material , polymer
Urethane macromers were prepared by reacting tolylene diisocyanate with various glycols, followed by end capping with 2‐hydroxyethyl methacrylate in the presence of dibutyltin dilaurate as the catalyst. Various proportions of styrene to the urethane‐methacrylate macromer were adopted to cure at 70°C for 7–8 h. The effect of the composition on the properties was systematically studied. These transparent materials exhibited excellent mechanical and optical properties and heat deflection temperature. All of the copolymer sheets had a transmittance similar to the poly(methyl methacrylate) sheet and had a rather high refractive index. The mechanical and thermal properties varied with the ratio of styrene to macromer and with the kind of glycol used in the synthesis of the macromer. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 348–357, 2001