聚偏氟乙烯及其共聚物的分子链旋转势能计算

Variation of interchain potential during molecular chain rotation in copolymer of vinylidene fluoride with trifluoroethylene

文章计算了聚偏氟乙烯和三氟乙烯共聚物分子链旋转时势能曲线。结果表明势能曲线不存在“六阱势”理论所预言假设的准六度对称性。由此推论“六阱势”理论不是描述这种有机铁电共聚物极化反转的合适的理论模型。

The variation of interchain potential in copolemer of vinylidene fluoride with trifluoroethylene during chain rotation was calculated.The result indicates that the potential curves do not show six fold symmetry as predicted by“six site potential”model.It was speculated therefore,the“six site potential”is not very appreciative for describing the polarization reversal in these ferroelectric copolymers.