申请人:Asahi Kasei Kogyo Kabushiki Kaisha
公开号:EP0245505A1
公开(公告)日:1987-11-19
A terminal-modified block copolymer wherein an amino group- or amino group-containing, terminal-treating agent is bound to the terminals of the polymer. It is obtained by reacting the active terminals of a block copolymer of a conjugated diene with a vinylaromatic hydrocarbon comprising 5 to 95 % of a vinylaromatic hydrocarbon and having a number- average molecular weight of 5,000 to 1,000,000 (obtained by using at least one member selected from among alkali metals and organic alkali metal compounds as a polymerization initiator) with at least one terminal-treating agent selected from among imide compounds, cyanamide compounds, aziridinyl compounds, amide compounds, and other tertiary amino group-containing compounds. A pressure-sensitive adhesive composition excellent in adhesiveness and anti-creeping properties comprising said block copolymer and a tackifying resin, a water-absorbing composition comprising said block copolymer and a highly water-absorbing resin, a thermoplastic resin composition comprising said block copolymer and a thermoplastic resin, and a conductive composition comprising said block copolymer and a conductive material are also disclosed.
一种末端改性嵌段共聚物,其中一种含氨基或氨基基团的末端处理剂与聚合物的末端结合。它是通过将共轭二烯与乙烯基芳烃的嵌段共聚物的活性末端与至少一种末端处理剂反应而得到的,该末端处理剂选自亚胺化合物、氰胺化合物、氮杂环丁基化合物、酰胺化合物和其他含三级氨基基团的化合物,乙烯基芳烃的含量为 5%至 95%,平均分子量为 5,000 至 1,000,000 (通过使用至少一种选自碱金属和有机碱金属化合物的成员作为聚合引发剂而得到)。此外,还公开了由所述嵌段共聚物和增粘树脂组成的粘合性和防蠕变性能优异的压敏胶组合物、由所述嵌段共聚物和高吸水性树脂组成的吸水组合物、由所述嵌段共聚物和热塑性树脂组成的热塑性树脂组合物以及由所述嵌段共聚物和导电材料组成的导电组合物。