Structural Control of Functionalized Groups in Organized Molecular Films of Comb Copolymers

抄録

Orientation for functional carbazole groups in comb copolymers were controlled using co-polymerization with long-chain vinyl compounds and the method of organized molecular films. Their structures were estimated using in-plane X-ray diffraction (XRD) and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. In the bulk state, fluorinated comb copolymers form side-chain crystal at a two-dimensional lattice spacing of 5.0 A. From the in-plane XRD measurements of multilayers on solids, the two-dimensional lattice structures of fluorinated comb copolymer films containing NVCz units were different from those in their bulk states. Polarized NEXAFS measurements showed highly ordered orientation of carbazole groups in the films. This well-ordered arrangement of functional groups should be caused by the  interaction between the carbazole rings.