摘要
用粘度、渗透压、GPC和光散射法研究了反式聚异戊二烯(PIP)的溶液性质。分别由M_w和M_n建立了PIP在甲苯中的单分散粘度-分子量关系式。对<L_0~2>^(0.5)/M^(0.5),用Stockmayer和 Fixman经验式计算为 0.097 nm;用 Krigbaum半经验式则为 0.096 nm,与文献值(0.091—0.097 nm)相当吻合。由 Krigbaum半经验式求出了[η]θ,得到了θ溶液中单分散的粘度方程。K_0 为 0.225和 0.238,与文献值 0.232和 0.191近似。
The solution properties of trans-polyisoprene ( PIP ) were studied by means of viscosity, osmotic pressure, light scattering and GPC methods. The monodispersed [η]-molecular weight ( M ) equations of trans-polyiso-prene in toluene were established with Mw and Mn, respectivly.<L02>0.5/> M0.5 (A0.5 ) obtained from Stockmayer and Fixman equation was 0.097 nm, and A0.5 calculated from Kribaum emperical equation was 0.096 nm,while A0.5 of PIP reported in literature was 0.091-0.097 nm.[η]θ was obtained from Krigbaum eqution.Based on these,the monodispersed equation for PIP in θ solution is established.The Flory viscosity constants K0 calculated by this equation were 0.225 and 0.238 which were approximate to those found in literatures ( 0.232 and 0.191 ) .
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1989年第3期185-188,共4页
China Synthetic Rubber Industry
关键词
聚异戊二烯
溶液
粘度方程
GPC
trans -polyisoprene
solution property
unperturbed chain dimension
light scattering
monodispersed equation
gel permeation chromatography ( GPC )
