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Organotin polymers. XII. Azeotropy in binary and ternary copolymerization reactions of di(tri‐ n ‐butyltin) itaconate with acrylic acid esters, styrene, and acrylonitrile
Author(s) -
Shaaban A. F.,
Mahmoud A. A.,
Messiha N. N.
Publication year - 1988
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.1988.070360519
Subject(s) - acrylonitrile , ternary operation , copolymer , polymer chemistry , styrene , methyl acrylate , acrylate , chemistry , butyl acrylate , ternary numeral system , ethyl acrylate , polymer , materials science , organic chemistry , phase (matter) , programming language , computer science
Binary and ternary copolymerizations of di(tri‐ n ‐butyltin) itaconate (TBTI) with methyl acrylate (MA), ethyl acrylate (EA), n ‐butyl acrylate (BA), styrene (ST), 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. The determination of unitary, binary, and ternary azeotropies of the various systems studied was easily handled by a computer. Ternary azeotropic compositions for TBTI–MA–AN and TBTI–EA–AN systems were 37 : 48 : 15 and 9 : 80 : 11 mol %, respectively. Also, “Pseudo‐azeotropic” regions were identified where the deviation between feed and polymer compositions is very small.