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Controlled RAFT Polymerization of N-Vinylphthalimide and its Hydrazinolysis to Poly(vinyl amine)

✍ Scribed by Yuya Maki; Hideharu Mori; Takeshi Endo

Book ID
102484652
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
222 KB
Volume
208
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Polymerization of NVPI was carried out by a RAFT process using five xanthate‐type, a dithiocarbamate‐type, and a dithioester‐type CTA. The xanthate‐type [O‐ethyl‐S‐(1‐ethoxy carbonyl) ethyl dithiocarbonate and O‐ethyl‐S‐(1‐ethoxycarbonyl‐1‐methyl)ethyl dithiocarbonate] and the dithiocarbamate‐type CTA (benzyl‐1‐pyrrolecarbodithioate) were the most efficient to obtain poly(NVPI) with controlled molecular weights ($\overline M _{\rm n}$ = 4 100–13 000) and low polydispersities ($\overline M _{\rm w} /\overline M _{\rm n}$ = 1.29–1.38). The effects of parameters such as solvent, temperature, and CTA‐to‐initiator molar ratio, were examined in order to determine the conditions leading to optimal control of the polymerization.

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