- 作者: Mei-Hui Yang, Yeun-Hsing Hwang and Jiann-Chang Liu
- 中文摘要: The anionic copolymerization of hexaphenylcyclotrisiloxane (P3) and hexamethylcyclotrisiloxane (D3) under non-equilibrium conditions was carried out for synthesizing a series of poly(diphenylsiloxane-stat-dimethylsiloxane) copolymers. The sequence analyses of these copolymers were studied. Sequence distribution up to the pentad level is observable in the 1H NMR spectrum. The sequence distributions calculated from a pentad model by using Bovey’s method, interpret the 1H NMR spectra (SiCH3 only) of all the copolymers very well. However, the triad model was only valid for relatively lower P3 content (< 50 mol%) copolymers.
- 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --