Polymer, volume 28, issue 8, pages 1423-1425
Organotin polymers: 10. Copolymerization parameters for di-(tri-n-butyltin) itaconate with methyl acrylate, ethyl acrylate, N-vinyl pyrrolidone and acrylonitrile
A.F. Shaaban
1
,
Mohamed M.H. Arief
1
,
A. A. MAHMOUD
1
,
N.N. Messiha
2
2
Laboratory of Polymers and Pigments National Research Centre., Dokki., Cairo., Egypt.
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Publication type: Journal Article
Publication date: 1987-07-01
Materials Chemistry
Organic Chemistry
Polymers and Plastics
Abstract
The monomer reactivity ratios for the copolymerization of di-(tri-n-butyltin) itaconate (M1) with methyl acrylate (M2), ethyl acrylate (M2), N-vinyl pyrrolidone (M2) and acrylonitrile (M2) were found to be r1 = 0.387, r2 = 0.671; r1 = 0.555, r2 = 0.958; r1 = 0.033, r2 = 0.185 and r1 = 0.441, r2 = 0.425, respectively. Copolymerization reactions were carried out in solution at 60°C using 1 mol% AIBN, with copolymer compositions being determined by tin analysis. The Q and e values for di-(tri-n-butyltin) itaconate were calculated from the monomer reactivity ratios determined in the present and previous studies. The sequence distribution of the triad fractions for the systems studied were calculated at azeotropic compositions.
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