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Effects of Light‐Induced Regularity on the Physical Properties of Multiphase Polymers
Author(s) -
Murata Kosuke,
Murata Tasuku,
Nakanishi Hideyuki,
Norisuye Tomohisa,
TranCongMiyata Qui
Publication year - 2009
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200800306
Subject(s) - materials science , polystyrene , photopolymer , polymer , fabrication , methyl methacrylate , morphology (biology) , irradiation , phase (matter) , hexagonal crystal system , methacrylate , composite material , chemical engineering , copolymer , polymerization , crystallography , medicine , chemistry , alternative medicine , physics , organic chemistry , pathology , biology , nuclear physics , engineering , genetics
A method that combines UV irradiation and pausing was developed to manipulate the regularity and the length scales of the morphology generated by phase separation in full ‐interpenetrating polymer networks of polystyrene and poly(methyl methacrylate). Upon increasing the pause time of photopolymerization and photo‐crosslink processes, the morphology gradually changes from hexagonal‐like packing to random structures. The width of the loss tan δ obtained for these phase‐separated materials changes with the morphological regularity, suggesting a potential technique for fabrication of mechanical bandgap materials.