Design of a Dynamic Polymer Interface for Chiral Discrimination
摘要:
Enantioselective wetting of a chiral polymer film was demonstrated. The contact angle of chiral liquids on the film was strongly dependent on their chirality although their physical properties including surface tension were identical. Such wetting behavior resulted from the enantioselective surface reorganization involving local conformational change of the polymer chains at the liquid interface. The concept of "dynamic interface for chiral discrimination" has possible potential for the development of materials capable of chiral sensing, optical resolution, and asymmetric synthesis.
Spectroscopic studies of photocrosslinking of polysiloxane containing cinnamic esters
作者:Renuka Sinsermsuksakul、Sauvarop Bualek
DOI:10.1016/0022-2860(95)08617-5
日期:1995.3
Abstract Polysiloxane, M n = 2,800 , was fully functionalized by Platinum catalyzed hydrosilation of vinylalkyl terminated cinnamic p-substituted phenyl esters. Progress of the reaction was observed from the reduction of the vibrational absorption band of the Si-H group using FTIR measurement. Polymer films prepared by casting on a quartz cell and on a KBr window (for measurements of UV- and IR-spectra