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Synthesis of novel hydrocarbon polymers containing 6‐membered rings in the main chain: living anionic polymerization of 1,3‐cyclohexadiene
Author(s) -
Natori Itaru,
Imaizumi Kimio
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200007)157:1<143::aid-masy143>3.0.co;2-5
Subject(s) - polymer , copolymer , molar mass distribution , polymer chemistry , polymerization , anionic addition polymerization , materials science , diamine , ternary operation , styrene , living polymerization , butyllithium , hydrocarbon , chemistry , organic chemistry , radical polymerization , composite material , computer science , programming language
The n ‐butyllithium (n‐BuLi)/ N,N,N',N' ‐tetrametylethylene‐diamine (TMEDA) system (the molar ratio of TMEDA to n ‐BuLi higher than 4/4) has been found to polymerize 1,3‐cyclohexadiene (1,3‐CHD) to produce “living” polymer having narrow molecular weight distribution with well‐controlled polymer chain length. Binary and ternary block copolymers with narrow molecular weight distribution could be synthesized from 1,3‐cyclohexadiene, styrene, and butadiene with very high efficiency. These polymers and their hydrogenated derivatives have excellent thermal, mechanical, chemical, and optical properties for the new industrial materials.