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Synthesis and characterization of excellent transparency poly(urethane‐methacrylate)
Author(s) -
Fang Shaoming,
Gao Lijun,
Zhou Liming,
Zheng Zexin,
Guo Baosong,
Zhang Chenggui
Publication year - 2008
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/app.29088
Subject(s) - isophorone diisocyanate , prepolymer , materials science , polymer chemistry , methacrylate , thermosetting polymer , maleic anhydride , fourier transform infrared spectroscopy , thermal stability , polyurethane , polymer , copolymer , chemical engineering , organic chemistry , chemistry , composite material , engineering
Abstract A series of novel crosslinked poly(urethane–methacrylate) (PUA) was synthesized. PUA was polymerized in a three‐step process: The low number average molecular weight unsaturated polyester (UPE) containing hydroxyl groups was synthesized by 1,2‐propanediol (PG), 2‐butyl‐2‐ethyl‐1,3‐propanediol (BEPD) and maleic anhydride (MA). A series of prepolymers, which had double bonds at the end of the chain, was prepared from isophorone diisocyanate (IPDI), UPE, and β‐hydroxyethyl methacrylate (HEMA) in the presence of dibutytin dilaurate (DBTL) as catalyst. The novel functional prepolymer was initiated by 2,2‐azobis‐isobutyronitrile(AIBN) to form thermosetting materials. The structure of the thermosetting materials was characterized by Fourier Transform Infrared (FTIR). Mechanical, thermal, and optical properties were tested. The results showed that the advanced PUA had good thermal and mechanical properties and high transparence. The throughput of PUA was above 90%, thus the PUA was possible to be used as excellent optical material. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009