Styrene/maleic anhydride (MA) copolymerization was carried out using benzoyl peroxide (BPO) and 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO). Styrene/MA copolymerization proceeded faster and yielded higher molecular weight products compared to styrene homopolymerization. When styrene/MA copolymeriza
Copolymerization of styrene, maleic anhydride and acrylonitrile up to high conversion
โ Scribed by Regina De J. Santos; Bluma G. Soares; Ailton S. Gomes
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 214 KB
- Volume
- 195
- Category
- Article
- ISSN
- 1022-1352
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โฆ Synopsis
Abstract
Terpolymers of styrene, maleic anhydride and acrylonitrile were synthesized by variation of the molar ratios of the three monomers at total monomer conversion up to 90 molโ%. Polymerizations were performed with total initial monomer concentrations of 0,25 g/mL in benzene at 60ยฐC with AIBN as initiator. The composition of the terpolymers was determined by elemental analysis. Although this ternary system comparises only one electronโdonor monomer and two electronโacceptor monomers, maleic anhydride is the most reactive monomer and is incorporated in higher proportions than the other monomers.
๐ SIMILAR VOLUMES
Thermal bulk copolymerization of styrene (monomer 1) and maleic anhydride (monomer 2) was carried out in a continuous stirred tank reactor (CSTR) with a double helical ribbon-anchor impeller. A series of experimental runs under different operating conditions (average residence time, reaction tempera
## Abstract The copolymerization of styrene (St) and maleic anhydride (MA) was carried out in supercritical carbon dioxide (SC CO~2~). It was found that St and MA are easy to copolymerize in SC CO~2~ and the conversion can reach 97%, and that very fine and dry powders are obtained. The products wer
A~traet--The copolymerization of styrene and acrylonitrile has been investigated with the purpose of predicting the changes in copolymer composition and comonomer sequence distribution with increasing conversion. Toluene was used as the solvent and the copolymerization was examined initially under l