| 초록 |
Fluoropolymers containing vinylidene fluoride (VDF), trifluoroethylene (TrFE), chlorotrifluoroethylene (CTFE), and hexafluoroethylene (HFP) have been prepared by a two-step approach consisting of terpolymerization of VDF, HFP, and CTFE and a subsequent reductive dechlorination reaction. The structural characteristics including microstructure, chain conformation, and crystallinity of the polymers have been carefully elucidated as a function of the chemical composition by 1H and 19F NMR, Fourier transform infrared spectroscopy, and wide-angle X-ray diffraction. The influence of the polymer composition on thermal transitions and dielectric constants has also been investigated. |
