Linear versus three-arm star polybutadiene: Effects of polymer architecture on the thermodynamic solution behavior

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	Linear versus three-arm star polybutadiene: Effects of polymer architecture on the thermodynamic solution behavior
	Xiong, Xiaope ; Eckelt, John ; Wolf, Bernhard A. ; Xiong XP(熊晓鹏)
刊名	http://dx.doi.org/10.1021/ma302010j
	2012-12-11
关键词	Polybutadienes Stars
英文摘要	The interaction of linear and of three-arm star polybutadiene (PB) with THF was studied in the temperature range between 25 and 55 掳C. Information for dilute solution rests on light scattering experiments; Flory-Huggins interaction parameter 蟺 stem from vapor pressure measurements as a function of 蠄, the volume fraction of polymer. Despite the minute divergence in the architecture, the second osmotic virial coefficients of the two PBs differ noticeably. The present work demonstrates that these disparities become much more pronounced as 蠄 increases and that they depend strongly on temperature. These findings are interpreted on the basis of an approach accounting for the effects of chain connectivity and for conformational changes of the components. In this manner it is possible to rationalize the observed complex dependencies 蟺 (蠄, T), and to relate these effects to the dissimilar free volumes of the polymers. 漏 2012 American Chemical Society.
语种	英语
出版者	American Chemical Society
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87413]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Xiong, Xiaope,Eckelt, John,Wolf, Bernhard A.,et al. Linear versus three-arm star polybutadiene: Effects of polymer architecture on the thermodynamic solution behavior[J]. http://dx.doi.org/10.1021/ma302010j,2012.
APA	Xiong, Xiaope,Eckelt, John,Wolf, Bernhard A.,&熊晓鹏.(2012).Linear versus three-arm star polybutadiene: Effects of polymer architecture on the thermodynamic solution behavior.http://dx.doi.org/10.1021/ma302010j.
MLA	Xiong, Xiaope,et al."Linear versus three-arm star polybutadiene: Effects of polymer architecture on the thermodynamic solution behavior".http://dx.doi.org/10.1021/ma302010j (2012).