Organotin polymers—VIII. Binary and ternary copolymerizations of triphenyltin methacrylate with arylonitrile,styrene, N-vinyl pyrrolidone and n-butyl methacrylate |
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| Authors: | NE Ikladious NN Messiha AF Shaaban |
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| Institution: | 1. Laboratory of Polymers and Pigments, National Research Centre, Dokki, Cairo Egypt;2. Department of Chemistry, Faculty of Science, Zagazig University-Benha Branch, Benha, Egypt |
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| Abstract: | 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: r1 = 0.69, r2 = 0.16; r1 = 0.76, r2 = 0.47, and r1 = 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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