Abstract
Along our studies, three sorts of characteristic elastomers are described in this review focusing on their synthesis, structure and properties.
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(1)
A novel moisture-curable rubber and a high performance lignin-reinforced rubber with good processability were obtained by using newly developed 1-chloro-1,3-butadiene — 1,3-butadiene rubber (CB-BR) derived from the copolymerization of 1-chloro-l,3-butadiene (CB) and 1,3-butadiene by emulsion process.
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(2)
The ionene-type viologen elastomers having poly(butadiene-co-acrylonitrile) (NBV) were obtained by the reaction of α,α’-dichloro-p-xylene (DCX), 4,4’-bipyridine (BP) and dimethylamine-terminated liquid nitrile rubber (AT-NBR). The tensile properties of these elastomers were found to depend upon the number of cation-site in a structural unit of the ionene, and to attain 46 MPa in tensile strength and 340% in elongation at break without any reinforcement and vulcanization.
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(3)
Two sorts of ABA type liquid crystalline elastomers terminated with mesogenic groups were synthesized. The polymeric segment of B is polyolefin with molecular weight of about 2500. Mesogenic groups of A carring two or three phenylene groups combined by ester linkage, were prepared by the reaction of terephthalic acid and p-hydroxybenzoic acid. These polymers were liquid crystalline and could be formed into elastic films. Their thermal and mechanical properties were clarified.
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Yamashita, S. (1991). Synthesis and Properties of Some Characteristic Elastomers. In: Anderson, B.C., Imanishi, Y. (eds) Progress in Pacific Polymer Science. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84115-6_31
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DOI: https://doi.org/10.1007/978-3-642-84115-6_31
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