申请人:Novartis AG
公开号:US10138316B2
公开(公告)日:2018-11-27
The invention provides a class of amphiphilic branched macromers and the uses thereof. An amphiphilic branched polydiorganosiloxane macromer of the invention is produced from an α,ω-dimethacryloyl-terminated polydiorganosiloxane vinylic crosslinker comprising one or more ATRP-containing siloxane units having one substituent having an ATRP initiator by ATRP polymerization of one or more hydrophilic vinylic monomers. It comprises at least two polydiorganosiloxane polymer chains each having at most two terminal methacryloxy groups, dangling hydrophilic polymer chains each having a polymerizable or non-polymerizable terminal group, and one or more hydrophilic polymer chains as linkages between two polydiorganosiloxane chains. The present invention is also related to a silicone hydrogel contact lens, which comprises units derived from a polydiorganosiloxane-containing amphiphilic branched macromer of the invention.
本发明提供了一类两亲性支链大分子及其用途。本发明的两性支化聚二有机硅氧烷大分子是由一种α,ω-二甲基丙烯酰基封端的聚二有机硅氧烷乙烯基交联剂通过一种或多种亲水性乙烯基单体的 ATRP 聚合反应制得的,该交联剂包含一个或多个含 ATRP 的硅氧烷单元,其中一个取代基具有 ATRP 引发剂。它包括至少两条聚二有机硅氧烷聚合物链,每条链上都有至多两个末端甲基丙烯酰氧基,悬垂亲水聚合物链,每条链上都有一个可聚合或不可聚合的末端基团,以及一条或多条亲水聚合物链作为两条聚二有机硅氧烷链之间的连接。本发明还涉及一种硅酮水凝胶隐形眼镜,该隐形眼镜由本发明的含聚二有机硅氧烷的两亲支链大分子衍生的单元组成。