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Synthesis and Thermal Properties of Alternating Copolymers of N ‐Methylmaleimide with Olefins Including Cyclic and Polar Groups
Author(s) -
Omayu Akitoshi,
Matsumoto Akikazu
Publication year - 2008
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.200800383
Subject(s) - copolymer , maleimide , substituent , polymer chemistry , reactivity (psychology) , monomer , glass transition , chemistry , polar , polymerization , olefin fiber , methylene , polymer , organic chemistry , medicine , physics , alternative medicine , pathology , astronomy
The radical alternating copolymerization of N ‐methylmaleimide with various olefins was carried out to obtain thermally stable and transparent polymers. Cyclic olefins including an exo‐methylene group showed high polymerization reactivities during the copolymerization. The introduction of a polar substituent into the olefin monomers results in the formation of copolymers with a high yield. The polymerization reactivity of the olefins is discussed based on DFT calculations. The introduction of cyclic and polar substituents into the olefin repeating units increased the glass transition temperature of the obtained copolymers, similar to the previously reported results for the introduction of bulkier and polar substituents into the N ‐substituents of the maleimide.