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Iridescence of 2‐hydroxyethyl methacrylate/aromatic allyl ester reaction mixtures
Author(s) -
Tsuchiya Masahiro,
Kojima Takakazu
Publication year - 1999
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/(sici)1097-4628(19991003)74:1<125::aid-app15>3.0.co;2-r
Subject(s) - iridescence , methacrylate , monomer , 2 hydroxyethyl methacrylate , polymer chemistry , polymerization , phthalate , methyl methacrylate , materials science , (hydroxyethyl)methacrylate , copolymer , transmittance , chemical engineering , chemistry , polymer , composite material , optics , physics , optoelectronics , engineering
Reaction of 2‐hydroxyethyl methacrylate and diallyl phthalate or vinyl 4‐ tert ‐butylbenzoate has been found to give an iridescent reaction mixture. Transmittance spectra of the reaction mixture depended on the temperature in the range of 0 to 60°C. The temperature‐transmittance curves showed a discrete stepwise change near the room temperature. Polymerization reaction of 2‐hydroxyethyl methacrylate (PHEMA) in a nonreactive monomer substitute, dipropyl phthalate, showed a temperature dependence as was seen for the iridescent reaction mixture, but was not iridescent. PHEMA suspension in several aromatic solvents also showed iridescence, and some of them were temperature dependent. The mechanism of temperature‐dependent iridescence of the copolymerization reaction mixtures is discussed. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 125–131, 1999