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    • 4. 发明授权
    • Stabilized sulfur-containing resins, such as polyphenylene sulfide and
method of producing same
    • 稳定的含硫树脂,如聚苯硫醚及其制备方法
    • US4447581A
    • 1984-05-08
    • US388179
    • 1982-06-14
    • Ferdinand QuellaHans-Friedrich Schmidt
    • Ferdinand QuellaHans-Friedrich Schmidt
    • C08G75/02C08L39/04C08L65/00C08L71/00C08L77/00C08L79/08C08L81/00C08L81/02C08L81/06C08L81/04
    • C08L81/00C08G75/029C08L81/02C08L81/06C08L39/04C08L65/00C08L71/00C08L77/00C08L79/08
    • Sulfur-containing polymers, such as polyphenylene sulfide, are stabilized from releasing sulfur-containing exhaust gases by adding an additive polymer having at least one reactive radical selected from the group consisting of amino radicals, amido radicals, imido radicals, and keto radicals therein, and which is of approximate the same thermal stability as the sulfur-containing polymer, to such sulfur-containing polymer. In other embodiments of the invention, sulfur-stabilization is also achieved by incorporating suitable fundamental building blocks of the additive polymer into the sulfur-containing polymer chain in the form of reactive monomers. Further, in other embodiments, additive polymers or oligomers (so-called telecheles) having reactive radicals at their ends can be introduced into the sulfur-containing polymer chain as copolymers. In addition, low molecular weight compounds having high boiling points and having structures similar to the fundamental building blocks of the sulfur-containing polymers are also effective for stabilizing such polymers.
    • 含硫聚合物如聚苯硫醚通过添加具有至少一种选自氨基,酰胺基,酰亚胺基和酮基的至少一种反应性基团的添加剂聚合物来释放含硫废气而被稳定, 并且其与含硫聚合物的热稳定性大致相同,适用于这种含硫聚合物。 在本发明的其它实施方案中,通过将反应性单体形式的添加剂聚合物的合适的基本结构单元并入含硫聚合物链中也可实现硫稳定化。 此外,在其他实施方案中,可以将其在其末端具有反应性基团的添加剂聚合物或低聚物(所谓的转角枪)作为共聚物引入含硫聚合物链中。 此外,具有高沸点和具有类似于含硫聚合物的基本结构单元的结构的低分子量化合物对于稳定这种聚合物也是有效的。