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Synthesis of Soluble Poly(Divinylbenzene) with an End-Functional Group

✍ Scribed by Yukio Nagasaki; Masao Kato; Norikiyo Kato; Yoshio Mitsuhata; Hiroaki Nishizuka; Teiji Tsuruta

Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
435 KB
Volume
99
Category
Article
ISSN
0037-9646

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✦ Synopsis

Synthetic methods of end-functional soluble poly(diviny1benzene) [poly DVB)] and A-B-A pe block copolymers having soluble poly(diviny1benzene) segments were investigatedl Lithium N, N'-bi$rimethylsil 1)ethylenediamine was found to initiate an anionic polymerization of 1 ,4-dbinylbenzene (DVB) to form soyuble polymer havin one N,N'-bis trimethy1silyl)ethylenediamine moiety at the end of 01 rner chain almost quantitatively. The potmer was eash y converted to primary-amino-ended soluble pol@dlJ by treating with tetrabutylammonium fluoride. Lithiated trimethylallylsilane also had an initiation ability or DV polymerization. Ween the pol merization was carried out by lithiated trimethylallylsilane, in the presence of diisopropylamine, a soluble pormer was formed. The polymer obtained had one terminal organosilyl group and reactive pendent vinyrgroup in each monomeric unit. A-B-A T e tri block copolymer was synthesized through reactions between primary-amino-ended soluble p o l y ( D 4 anda,o-bis-primary-amino-ended silicone using 4,4'-diphenylmethanediisocyanate as coupling agent. The resulting polymer was a multi-functional polymer having poly(DVB) segments and silicone segments.

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