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Organotin polymers. XV. Azeotropy in terpolymerization reactions of tributyltin acrylate or methacrylate with itaconic acid or dimethylitaconate and acrylonitrile
Author(s) -
Mahmoud A. A.,
Shaaban A. F.,
Azab M. M.,
Messiha N. N.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070441021
Subject(s) - acrylonitrile , itaconic acid , polymer chemistry , copolymer , chemistry , ternary operation , acrylate , polymer , organic chemistry , computer science , programming language
Ternary copolymerization of tri‐n‐butyltin acrylate (TBTA) or methylacrylate (TBTMA) with itaconic acid (IA) or dimethyl itaconate (DMI) and acrylonitrile (AN) were carried out in solution at 70°C in the presence of a free radical initiator. Experimental terpolymerization data agreed well with calculations based on the Alfrey‐Goldfinger equation. Ternary azeotropic compositions for TBTA‐IA‐AN, TBTMA‐IA‐IA, and TBTMA‐DMI‐AN systems were 39.0 : 26.1 : 34.9, 51.7 : 10.5 :37.8, and 00.3 : 66.3 : 33.4 mol %, respectively. Also, “pseudo‐azeotropic” regions were indentified where the deviation between feed and polymer compositions is very small.