摘要
通过凝胶渗透色谱和特性粘度实验技术,应用普适校正的原理,订定了偏二氟乙烯和三氟氯乙烯按1:4分子比的共聚物在乙酸乙酯中(25℃)的Mark-Houwink方程参数。结果得K=1.36×10^(-3),a=0.835。将这结果运用到该色谱谱图计算,所得的特性粘度值与用粘度法的实测值比较,最大相对偏差小于2％。
GPC and intrinsic viscosity measurements of vinylidene fluoriedchlorotrifluoroethylene copolymer (mole ratio 1: 4) in ethyl acetate at 25 C were done. Based on the principle of GPC universal calibration, a method was developed for determining the Mark-Houwink constants of the system. The values of K=1. 36×10^(-3) and α=0. 835 were obtained. When these results are used in the calculation for GPC, the intrinsic viscosity obtained therefrom is well agreeable to that from the viscosity method, and the max relative deviation between the values from two methods is less than 2%.
出处
《含能材料》
EI
CAS
CSCD
1993年第4期31-34,共4页
Chinese Journal of Energetic Materials
