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Polymerization of cis- and trans-cinnamonitriles by anionic catalysts

✍ Scribed by Kobuke, Yoshiaki ;Fueno, Takayuki ;Furukawa, Junji

Publisher
Wiley (John Wiley & Sons)
Year
1970
Tongue
English
Weight
395 KB
Volume
8
Category
Article
ISSN
0449-296X

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✦ Synopsis

Abstract

cis‐ and trans‐cinnamonitriles were polymerized in the presence of various anionic catalysts such as Grignard reagent, alkali metal naphthalenes, and calcium zinc tetraethyl. It was found that both monomers undergo concurrent geometrical isomerization as well as polymerization. Investigation on the calcium zinc tetraethyl catalyst showed that the trans‐nitrile had polymerizability noticeably greater than that of the cis isomer. Polymers resulting from these isomeric monomers had different microstructures. These results seem to be interpretable in terms of the four‐centered coordination model of the transition state.

📜 SIMILAR VOLUMES

Radical polymerization of ring-substitut
Radical polymerization of ring-substituted trans-cinnamonitriles and formation of ladder spin polymer
✍ Hitoshi Tanaka; Yoshimasa Kikukawa; Maki Sataki; Tsuneyuki Sato; Tadatoshi Ota 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 365 KB

## Abstract The polymerization of ring‐substituted __trans__‐cinnamonitriles has been studied with radical initiators such as peroxides and azo compounds at 60–130°C. 3,4,5‐Trimethoxycinnamonitriles (3,4,5‐MOCN) yield a homopolymer with a molecular weight of about 10^4^ in contrast to the unsubstit