Polymerization of acrylonitrile initiated by peroxomonosulphate-thiols redox systems
1990 ◽
Vol 55
(8)
◽
pp. 2001-2007
Keyword(s):
Aqueous thermal polymerization of acrylonitrile (AN) initiated by peroxomonosulphate (HSO5-, PMS)-thiolactic acid (TLA) and PMS-thiomalic acid (TMA) redox systems has been carried out in the temperature range 30-50 °C. The effect of concentration of monomer, initiator, reducing agent, H+, and ionic strength on rate of polymerization, Rp, has been investigated under deaerated conditions. The Rp has been found to depend on, Rp ~ [AN]01.5 [PMS]0.5 [TLA]0.5 in PMS-TLA system and, Rp ~ [AN]02.0 [PMS]1.0 [TMA]0 in PMS-TMA system. The degree of polymerization (Xn) values and thermodynamic parameters have been evaluated. Suitable reaction scheme has been proposed and expressions for Rp and Xn have been obtained.
1987 ◽
Vol 52
(3)
◽
pp. 572-581
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1995 ◽
Vol 50
(4)
◽
pp. 545-550
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2003 ◽
Vol 68
(10)
◽
pp. 729-749
◽
Keyword(s):
2009 ◽
Vol 113
(36)
◽
pp. 12293-12298
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