摘要
提出了利用多个宽分布聚合物试样的［η］和ＧＰＣ谱图在计算机上运用五点搜索法寻找［η］的最小偏差的程序来解得聚合物的ＭａｒｋＨｏｕｗｉｎｋ方程参数的新方法．并应用此法确定了聚环硫氯丙烷在四氢呋喃溶液中３０℃下的ＭａｒｋＨｏｕｗｉｎｋ方程参数为：α＝０７７１，Ｋ＝０５９２×１０－４．经［η］的误差分析及ＶＰＯ证实，得到的Ｋ、α值是可靠的，用于计算［η］及分子量时，相对误差均在６％之内．
A new rapid method for the determination of Mark Houwink equation constants from GPC and intrinsic viscocity data on a number of samples ( n >5) with a five point hunting program was described. The Mark Houwink equation constants of poly (Chloromethy thiirane) in THF solution at 30℃, which are 0 771 ( α ) and 0 592×10 -4 ( K ), were obtained by this method. The obtained K and α values were reliable and could be used for calculating the molecular weights of poly (chloromethyl thiirane) within the relative error of 6%, which was proved by error checking and VPO analysis.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1997年第4期393-399,共7页
Acta Polymerica Sinica
基金
国家自然科学基金
高等学校博士点专项科研基金
浙江省科委资助
关键词
聚环硫氯丙烷
PCMT
M-H方程参数
Mark Houwink equation constants, Poly(chloromethyl thiirane), Gel premeation chromatography
