【摘要】 本文对1,2-聚丁二烯的介电松弛进行了复平面分析.结果表明,在1,2-聚丁二烯的玻璃化转变过程中,ε″(ω)与ε＇(ω)的关系满足Havriliak-Negami方程.由复平面图求出了样品的静态和光频下的介电系数,平均松弛时间和松弛时间分布参数.利用所得数据讨论了1,2-聚丁二烯在玻璃化转变过程中的构象变化、松弛时间分布和平均偶极矩等问题.更多还原

【Abstract】 Complex plane analysis for the dielectric relaxation of 1,2-polybutadienes was performed. It has been shown that the dielectric relaxation of 1,2-polybutadienes can be described by Havriliak-Negami equation. Five dispersion parameters for three samples were evaluated from the complex plane plots. The conformational rearrangement motion on the glass transition and distribution of relaxation times of 1,2-polybutadienes were discussed.更多还原