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用液氮淬火和热处理方法制得结晶度相差较大的铁电共聚物ＶＤＦ（５２）／ＴｒＦＥ（４８）试样、介电弛豫研究揭示室温以下共聚物的频率谱由低频和高频两部分组成．低频部由非晶区被冻结分子链段的微布朗运动贡献，符合ＷＬＦ方程；高频部由晶区和非晶区分子链段较小尺度的局域运动产生，遵从Ａｒｒｈｅｎｉｕｓ规律．分峰拟合结果得到共聚物的玻璃化转变温度为－２４℃，局域弛豫活化能为４６．４ｋＪ／ｍｏｌ．
The VDF (52) / TrFE (48) samples with large difference in crystallinity were obtained by liquid nitrogen quenching and heat treatment. The dielectric relaxation studies revealed that the frequency spectrum of the copolymer below room temperature was from low frequency and high frequency Part of the composition. The low frequency part is contributed by the micro-Brownian motion of the frozen molecular chain in the amorphous region, which is in accordance with the WLF equation. The high frequency part is generated by the local motion of the smaller scale in the crystalline and amorphous regions and complies with the Arrhenius law. The results of peak fitting showed that the glass transition temperature of copolymer was -24 ℃ and the activation energy of local relaxation was 46.4kJ / mol.