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公开(公告)号:US20140097134A1
公开(公告)日:2014-04-10
申请号:US13644524
申请日:2012-10-04
IPC分类号: C08G75/14
CPC分类号: C08G75/14 , C08G75/0286 , Y10T442/56 , Y10T442/60
摘要: Provided are methods for obtaining modified polyarylene sulfide compositions having improved thermal and thermo-oxidative stability, the compositions so obtained, and articles comprising the compositions. The method comprises the steps of contacting, in the presence of a suitable solvent, a polyarylene sulfide with at least one reducing agent and at least base to form a first mixture. The reducing agent comprises zinc(0), tin(0), tin(II), bismuth (0), bismuth(III), or a combination thereof. The first mixture is heated to form a second mixture in which the polyarylene sulfide is dissolved. The polyarylene sulfide is then precipitated to obtain a modified polyarylene sulfide.
摘要翻译: 提供了获得具有改善的热和热氧化稳定性的改性聚芳硫醚组合物的方法,如此获得的组合物和包含该组合物的制品。 该方法包括以下步骤:在合适的溶剂存在下使聚芳硫醚与至少一种还原剂和至少碱形成第一混合物。 还原剂包括锌(0),锡(0),锡(II),铋(O),铋(III)或它们的组合。 将第一混合物加热以形成其中溶解聚芳硫醚的第二混合物。 然后将聚芳硫醚沉淀,得到改性聚芳硫醚。