Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom.
Chem Commun (Camb). 2011 Jun 7;47(21):6000-2. doi: 10.1039/c1cc11214g. Epub 2011 Apr 12.
The chain end complexation of a functional PNIPAM by a cucurbit[8]uril-viologen complex causes a shift in its lower critical solution temperature (LCST) by over 5 °C. An instantaneous phase change of the thermally responsive polymer beyond its LCST can be induced by addition of the aqueous cucurbituril host-guest complex. Subsequent decomplexation upon addition of a competitive guest releases the PNIPAM terminus and triggers complete reversibility.
通过葫芦脲-紫罗碱复合物对功能性 PNIPAM 的链末端络合，使其下限临界溶解温度（LCST）升高超过 5°C。通过添加葫芦脲主体-客体复合物，可在热响应聚合物的 LCST 以上引发瞬时的相转变。随后加入竞争性客体进行解络合，会释放出 PNIPAM 末端并引发完全的可逆性。
