申请人:UNIVERSITAET DES SAARLANDES
公开号:US10954331B2
公开(公告)日:2021-03-23
The present invention relates to a method of preparing a polyrotaxane, said method comprising:
performing a radical copolymerization of at least (a) a first polymerizable monomer having a stopper group, and of at least (b) a second polymerizable monomer, wherein said second monomer is complexed by a ring-shaped molecule;
wherein during said copolymerization a copolymer threading said ring-shaped molecule is formed,
wherein during said copolymerization said first monomer having a stopper group is incorporated into the chain of said copolymer at least partially between the ends thereof, and wherein said stopper groups prevent said ring-shaped molecule from disassembling from the copolymer; and
wherein the amount of said first monomer having a stopper group is of from 0.1 mol % to 20 mol % based on 100 mol % of the total amount of polymerizable monomers.
The present invention also relates to polyrotaxanes which can be prepared by using such a method.
The present invention further relates to cross-linked polyrotaxanes, products which contain polyrotaxanes or cross-linked polyrotaxanes or which can be prepared from polyrotaxanes or cross-linked polyrotaxanes, and the use of polyrotaxanes or cross-linked polyrotaxanes.
本发明涉及一种制备聚罗他赛的方法,所述方法包括
至少(a)具有阻塞基团的第一可聚合单体和至少(b)第二可聚合单体进行自由基共聚,其中所述第二单体与环形分子复合;
在所述共聚过程中,形成一种与所述环形分子螺纹连接的共聚物、
在所述共聚过程中,具有阻塞基团的所述第一单体至少部分地在其两端之间与所述共聚物的链结合,并且所述阻塞基团阻止所述环形分子从共聚物中分解;以及
以可聚合单体总量的 100 摩尔%为基准,具有阻塞基团的所述第一单体的量为 0.1 摩尔%至 20 摩尔%。
本发明还涉及可通过这种方法制备的聚异丁烯。
本发明还涉及交联聚罗axanes、含有聚罗axanes 或交联聚罗axanes 的产品或可由聚罗axanes 或交联聚罗axanes 制备的产品,以及聚罗axanes 或交联聚罗axanes 的用途。