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Do deviations from reptation scaling of entangled polymer melts result from single- or many-chain effects?

文献类型:期刊论文

作者Liu, Chen-Yang; Keunings, Roland; Bailly, Christian
刊名PHYSICAL REVIEW LETTERS
出版日期2006-12-15
卷号97期号:24
ISSN号0031-9007
DOI10.1103/PhysRevLett.97.246001
英文摘要By studying the relaxation of small amounts of short entangled "probe" chains in a high molecular weight matrix, we show that the deviations from reptation scaling of the longest relaxation time are not as much dominated by single-chain effects (usually referred to as contour length fluctuations or CLF) as assumed by current mesoscopic models but also originate to a very significant extent from mutual chain relaxation effects. This result is in fact consistent with literature data on tracer and self-diffusion. Moreover, tube theories also overpredict the influence of CLF on the plateau modulus. Improved theories, simulations, and careful experiments are urgently needed to resolve this important question.
语种英语
WOS记录号WOS:000242888700046
出版者AMERICAN PHYSICAL SOC
源URL[http://ir.iccas.ac.cn/handle/121111/58249]  
专题中国科学院化学研究所
通讯作者Keunings, Roland
作者单位1.Univ Catholique Louvain, CESAME, B-1348 Louvain, Belgium
2.Univ Catholique Louvain, Unite Chim & Phys Hauts Polymeres, B-1348 Louvain, Belgium
3.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Key Lab Engn Plast, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
Liu, Chen-Yang,Keunings, Roland,Bailly, Christian. Do deviations from reptation scaling of entangled polymer melts result from single- or many-chain effects?[J]. PHYSICAL REVIEW LETTERS,2006,97(24).
APA Liu, Chen-Yang,Keunings, Roland,&Bailly, Christian.(2006).Do deviations from reptation scaling of entangled polymer melts result from single- or many-chain effects?.PHYSICAL REVIEW LETTERS,97(24).
MLA Liu, Chen-Yang,et al."Do deviations from reptation scaling of entangled polymer melts result from single- or many-chain effects?".PHYSICAL REVIEW LETTERS 97.24(2006).

入库方式: OAI收割

来源:化学研究所

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