Reactivity ratios of controlled/living copolymerization of styrene and acrylonitrile in ionic liquid microemulsion | Health & Environmental Research Online (HERO)

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HERO ID

4701686

Reference Type

Journal Article

Title

Reactivity ratios of controlled/living copolymerization of styrene and acrylonitrile in ionic liquid microemulsion

Author(s)

Wang, G; Lu, M; Hou, Z; Wu, Hu

Year

2013

Is Peer Reviewed?

Yes

Journal

Journal of Polymer Research
ISSN: 1022-9760

Volume

Issue

DOI

10.1007/s10965-013-0080-1

Web of Science Id

WOS:000318283400023

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872685413&doi=10.1007%2fs10965-013-0080-1&partnerID=40&md5=6b92f589e97145d8216c88cd86b9a832
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Abstract

In this work, reverse atom transfer radical copolymerization of styrene and acrylonitrile was investigated at 65 degrees C in ionic liquid microemulsion using 2,2'-azobis(isobutyronitrile) (AIBN) as initiator, FeCl3 center dot 6H(2)O/succnic acid as catalyst complex, and hexadecyl trimethyl ammonium bromide as surfactant. The copolymers of styrene and acrylonitrile (SAN) with predetermined molecular weights and narrow molecular weight distribution were obtained. Results showed that the polymerization proceeded in a controlled/'living' process in which the molecular weight of SAN increased with increasing the monomer conversion. The size of the resulting SAN particle was investigated. The monomer reactivity ratios increased with increasing the molar ratio of acrylonitrile to styrene. The obtained polymer was characterized by C-13 nuclear magnetic resonance and gel permeation chromatography. The living characteristics were demonstrated by chain extension experiment.

Keywords

Styrene; Acrylonitrile; Living polymerization; Ionic liquid based microemulsion