Studies on the copolymer composition of sulphur dioxide and phenylacetylene

C. P. Tsonis; S. A. Ali; J. S. Hwang

doi:10.1016/0032-3861(87)90055-3

Studies on the copolymer composition of sulphur dioxide and phenylacetylene

C. P. Tsonis^*, S. A. Ali, J. S. Hwang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The polysulphone copolymers synthesized from the copolymerization of liquid sulphur dioxide and phenylacetylene in the presence of tert-butyl hydroperoxide at low temperature always have an alternating structure which is independent of solvent, temperature and feed ratio. At a relatively high temperature (50°C) the phenylacetylene SO₂ system initiated by AIBN gave copolymers with a 1:1 mole ratio, whereas styrene SO₂ under the same conditions produced copolymers with 2:1 molar ratio. The free radical initiators hydrogen peroxide, m-chloroperbenzoic acid, and diphenyl peroxide were inert at low temperatures. The PhC CH SO₂ system with (CH₃)₃COOH at low temperature is more reactive than PhCH CH₂ SO₂ but with AIBN at high temperature the reactivities are reversed. These observations suggest that different mechanisms should operate on the two systems.

Original language	English
Pages (from-to)	2139-2144
Number of pages	6
Journal	Polymer
Volume	28
Issue number	12
DOIs	https://doi.org/10.1016/0032-3861(87)90055-3
State	Published - Nov 1987

Keywords

alternating copolymerization
phenylacetylene
reaction conditions
sulphur dioxide

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/0032-3861(87)90055-3

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title = "Studies on the copolymer composition of sulphur dioxide and phenylacetylene",

abstract = "The polysulphone copolymers synthesized from the copolymerization of liquid sulphur dioxide and phenylacetylene in the presence of tert-butyl hydroperoxide at low temperature always have an alternating structure which is independent of solvent, temperature and feed ratio. At a relatively high temperature (50°C) the phenylacetylene SO2 system initiated by AIBN gave copolymers with a 1:1 mole ratio, whereas styrene SO2 under the same conditions produced copolymers with 2:1 molar ratio. The free radical initiators hydrogen peroxide, m-chloroperbenzoic acid, and diphenyl peroxide were inert at low temperatures. The PhC CH SO2 system with (CH3)3COOH at low temperature is more reactive than PhCH CH2 SO2 but with AIBN at high temperature the reactivities are reversed. These observations suggest that different mechanisms should operate on the two systems.",

keywords = "alternating copolymerization, phenylacetylene, reaction conditions, sulphur dioxide",

author = "Tsonis, \{C. P.\} and Ali, \{S. A.\} and Hwang, \{J. S.\}",

year = "1987",

month = nov,

doi = "10.1016/0032-3861(87)90055-3",

language = "English",

volume = "28",

pages = "2139--2144",

journal = "Polymer",

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TY - JOUR

T1 - Studies on the copolymer composition of sulphur dioxide and phenylacetylene

AU - Tsonis, C. P.

AU - Ali, S. A.

AU - Hwang, J. S.

PY - 1987/11

Y1 - 1987/11

N2 - The polysulphone copolymers synthesized from the copolymerization of liquid sulphur dioxide and phenylacetylene in the presence of tert-butyl hydroperoxide at low temperature always have an alternating structure which is independent of solvent, temperature and feed ratio. At a relatively high temperature (50°C) the phenylacetylene SO2 system initiated by AIBN gave copolymers with a 1:1 mole ratio, whereas styrene SO2 under the same conditions produced copolymers with 2:1 molar ratio. The free radical initiators hydrogen peroxide, m-chloroperbenzoic acid, and diphenyl peroxide were inert at low temperatures. The PhC CH SO2 system with (CH3)3COOH at low temperature is more reactive than PhCH CH2 SO2 but with AIBN at high temperature the reactivities are reversed. These observations suggest that different mechanisms should operate on the two systems.

AB - The polysulphone copolymers synthesized from the copolymerization of liquid sulphur dioxide and phenylacetylene in the presence of tert-butyl hydroperoxide at low temperature always have an alternating structure which is independent of solvent, temperature and feed ratio. At a relatively high temperature (50°C) the phenylacetylene SO2 system initiated by AIBN gave copolymers with a 1:1 mole ratio, whereas styrene SO2 under the same conditions produced copolymers with 2:1 molar ratio. The free radical initiators hydrogen peroxide, m-chloroperbenzoic acid, and diphenyl peroxide were inert at low temperatures. The PhC CH SO2 system with (CH3)3COOH at low temperature is more reactive than PhCH CH2 SO2 but with AIBN at high temperature the reactivities are reversed. These observations suggest that different mechanisms should operate on the two systems.

KW - alternating copolymerization

KW - phenylacetylene

KW - reaction conditions

KW - sulphur dioxide

UR - https://www.scopus.com/pages/publications/0023450625

U2 - 10.1016/0032-3861(87)90055-3

DO - 10.1016/0032-3861(87)90055-3

M3 - Article

AN - SCOPUS:0023450625

SN - 0032-3861

VL - 28

SP - 2139

EP - 2144

JO - Polymer

JF - Polymer

IS - 12

ER -

Studies on the copolymer composition of sulphur dioxide and phenylacetylene

Abstract

Keywords

ASJC Scopus subject areas

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