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Radical Copolymerization Reactivity of N‐Substituted Maleimides with α‐Substituted Styrenes with Various N‐ and α‐Substituents and the Thermal and Optical Properties of the Resulting Copolymers
Author(s) -
Hisano Miki,
Takashima Tsutomu,
Jin Zhengzhe,
Shiibashi Akira,
Matsumoto Akikazu
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201300228
Subject(s) - copolymer , substituent , styrene , polymer chemistry , chemistry , reactivity (psychology) , glass transition , yield (engineering) , photochemistry , materials science , organic chemistry , polymer , medicine , alternative medicine , pathology , metallurgy
The radical alternating copolymerization of N‐substituted maleimides (RMIs) with N‐methyl, n ‐butyl, and 2‐ethylhexyl groups and styrene derivatives with various α‐substituents (RSs) is carried out. The yield and the molecular weight of the obtained copolymers significantly decrease with an increase in the size of the α‐substituent of RSs, but are independent of the N‐substituents. The glass‐transition temperature of the copolymers increases on the introduction of the large substituents into the RS repeating units. The high‐molecular‐weight poly(RMI‐ alt ‐RS)s are soluble in organic solvents and provide flexible and transparent films with excellent transparency by casting the solutions.