文献类型：期刊文章

作　　者：潘雁[1] 程镕时[1]

机构地区：[1]华南理工大学材料学院高分子研究所,广州510641

出　　处：《高分子学报》

基　　金：国家攀登计划资助项目;国家教委博士点基金!(基金号 970 5 6118)

年　　份：2000

卷　　号：10

期　　号：4

起止页码：518-520

语　　种：中文

收录情况：AJ、BDHX、BDHX1996、CAS、CSCD、CSCD2011_2012、IC、JST、PL、RCCSE、SCI-EXPANDED(收录号：WOS:000089003100029)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：The measured reduced viscosity\|concentration ( η \-\{sp\}/ c\|c ) curves of miscible PPO/PS、 immiscible PMMA/PS mixtures with different composition in toluene all deviate from linear and reveal downward turn in extremely dilute concentration region. Moreover, in the extremely dilute concentration region, the η \-\{sp\}/ c\|c curve of immiscible PVC/PS mixture solution shows upward turn in THF, while shows downward turn in DCE. These experimental facts indicate that such viscosity anomaly is not dependent of miscibility, but resulted from wall effects. Regarding the polymer mixture as a single solute, the interference of wall effects on viscosity measurement could be eliminated quantitatively with a proposed theoretical formula. After corrected, the true viscosity data of mixture shows normal linear η\-\{s p\}/ c\|c curve in the dilute and extremely dilute concentration region.

关 键 词：高分子混合物  粘度 界面作用  溶液  极稀溶度区  

分 类 号：O631]