申请人:The University of Akron
公开号:US09353214B2
公开(公告)日:2016-05-31
Substituted phenacyl molecules are provided and employed to create molecules and polymers/copolymers that exhibit photoresponsiveness. In some instances, the substituted phenacyl molecule is incorporated into the polymer/copolymer backbone, and photoirradiation of the polymer/copolymer causes the substituted phenacyl group to break down and the polymer/copolymer to undergo degradation. In other instances, the substituted phenacyl molecules extend as a side chain from the polymer/copolymer backbone. In yet other instances the substituted phenacyl molecules extend as a side chain from the polymer/copolymer backbone, and a drug or polymer additive is linked to the photoresponsive substituted phenacyl group such that photoirradiation releases the drug or additive. In yet other embodiments the substituted phenacyl molecules extend as a side chain from the polymer/copolymer backbone, and serve to link the polymer/copolymer to another polymer/copolymer backbone, and photoirradiation breaks the links.
替代苯乙酰分子被提供并用于创造表现出光响应性的分子和聚合物/共聚物。在某些情况下,替代苯乙酰分子被并入聚合物/共聚物骨架中,对聚合物/共聚物进行光照会导致替代苯乙酰基团分解并使聚合物/共聚物发生降解。在其他情况下,替代苯乙酰分子作为侧链延伸自聚合物/共聚物骨架。在另一种情况下,替代苯乙酰分子作为侧链延伸自聚合物/共聚物骨架,并且药物或聚合物添加剂与光响应性替代苯乙酰基团连接在一起,使光照释放药物或添加剂。在另一种实施方式中,替代苯乙酰分子作为侧链延伸自聚合物/共聚物骨架,并用于连接聚合物/共聚物到另一个聚合物/共聚物骨架,光照会断开连接。