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Organotin polymers—VIII. Binary and ternary copolymerizations of triphenyltin methacrylate with arylonitrile, styrene, N-vinyl pyrrolidone and n-butyl methacrylate

✍ Scribed by N.E. Ikladious; N.N. Messiha; A.F. Shaaban

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
262 KB
Volume
20
Category
Article
ISSN
0014-3057

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✦ Synopsis

Almtract--Copolymerizations involving triphenyltin methacrylate (PTMA) were carried out in solution at 70 ° in the presence of a free radical initiator; the copolymer compositions were determined from tin analyses. The monomer reactivity ratios for the copolymerizations of PTMA with acrylonitrile, styrene, and N-vinyl pyrrolidone were: r~ =0.69, r2=0.16; r~ =0.76, r2=0.47, and r~ = 1.22, r2=0.36, respectively. The sequence distribution of the alternation diads for the systems were calculated at various feed compositions. Ternary copolymerization of PTMA-acrylonitrile-butyl methacrylate was studied; the variation of terpolymer composition with conversion fit satisfactorily the experimental results. Ternary azeotropy for PTMA-acrylonitrile-styrene system was verified experimentally.

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