Synthesis and Characterization of Supramolecular Cross-Linkers Containing Cyclodextrin Dimer and Trimer
Rotaxane cross-linked polymers (RCPs) show characteristic properties such as high elongation and stress-relaxation which are attributed to the mobility of the polymer chain at the cross-link points.Previously, we reported the synthesis of vinyl polymer-type RCPs using in-situ formed vinylic supramolecular cross-linker (VSC) consisting of-CD oligomer (OCD) and PEG macromonomer (TBM) in water.1 Facile introduction of rotaxane cross-links into vinyl polymers was achieved, but it is still unclear what structure the VSC forms and how it affects the macroscopic property of the network polymer.Therefore, we newly designed and synthesized well-defined OCDs, i.e.-CD dimer and trimer, to obtain RCPs having clearer cross-link structure compared with previous one (Scheme 1).2 In this work, DOSY NMR measurement and tensile strength test for VSC solution and corresponding RCP were carried out to evaluate the cross-link structures.
Keisuke Iijima Daisuke Aoki Toshikazu Takata
Department of Chemical Science and Engineering, Tokyo Institute of Technology
国际会议
9th International Symposium on High-Tech Polymer Materials(第9届国际高技术高分子材料学术会议)(HTPM-9)
郑州
英文
71-71
2016-07-11（万方平台首次上网日期，不代表论文的发表时间）