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Preparation of poly arylene sulfide with specified ratio of sulfur source to cyclic organic amide
Preparation of poly arylene sulfide with specified ratio of sulfur source to cyclic organic amide
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机译:硫源与环状有机酰胺的特定比例的聚芳撑硫醚的制备
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摘要
Arylene sulfide polymers which can be linear, branched or modified are prepared by a process which comprises the steps of: (a) admixing a sulfur source and a cyclic organic amide in the presence of water to form an aqueous admixture wherein the molar ratio of the sulfur source to the cyclic organic amide is at least about 0.6:1 to about 1:1; (b) dehydrating said aqueous admixture to form a dehydrated admixture; (c) admixing with said dehydrated admixture at least one polymerizable halo- substituted aromatic compound to form a polymerization mixture; (d) subjecting the polymerization mixture to polymerization conditions effective to produce the arylene sulfide polymer; and (3) recovering the arylene sulfide polymer.
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