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Organotin polymers. IX. Copolymerization parameters of di‐(tri‐ n ‐butyltin) itaconate with styrene and methyl methacrylate
Author(s) -
Shaaban A. F.,
Arief M. M. H.,
Mahmoud A. A.,
Messiha N. N.
Publication year - 1987
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.1987.070330526
Subject(s) - copolymer , styrene , methyl methacrylate , azobisisobutyronitrile , reactivity (psychology) , polymer chemistry , monomer , chemistry , triad (sociology) , polymer , proton nmr , methacrylate , organic chemistry , medicine , psychology , alternative medicine , pathology , psychoanalysis
Copolymerization reactions of di‐(tri‐ n ‐butyltin) itaconate with styrene and methyl methacrylate were carried out in solution at 70°C using 1 mol% azobisisobutyronitrile as a free radical initiator. The copolymer compositions were determined by chemical analysis as well as from 1 H‐NMR data. The monomer reactivity ratios for copolymerizations of di‐(tri‐ n ‐butyltin) itaconate with styrene and methyl methacrylate have been found to be r 1 = 0.228, r 2 = 0.677, and r 1 = 0.220, r 2 = 1.635, respectively. The sequence distribution of the triad fractions were calculated from reactivity ratios and compared with those obtained from 1 H‐NMR data.