Effect of synthesis process on reduced inherent viscosity of PPTA;
合成方法对共缩聚PPTA比浓对数粘度的影响
The relationship between the reduced viscosity and concentation of sulfonated styrene-isoprene- styrene triblock copolymer(SSIS) and its ionomers in toluene and toluene/methanol solutions were studied.
本文报道SIS磺化及离子化后由溶液中分子链形态的不同而导致的溶液的比浓粘度及特性粘数的变化。
The reduced viscosity of TEAA-co-AM and DEB.
研究了共聚物水溶液的流动性质 ,这两类共聚物在水溶液中的比浓粘度都随盐浓度增大而增高 ,这是由于在盐溶液中盐度增大介质极性增强 ,至使大分子中较大烷基逃逸水相并发生自缔合的倾向更强烈的原因。
It has been noted that the reduced viscosity of solution reaches the maximum as the degree of neutralization of PAA is 0.
25时聚丙烯酸水溶液比浓黏度出现最大值。