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Volumn 102, Issue 5, 1995, Pages 2222-2238

On the interpretation of "ripple" polymer interdiffusion experiments in terms of models for bulk single-chain dynamics

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Indexed keywords


EID: 1842755227     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.468743     Document Type: Article
Times cited : (10)

References (57)
  • 25
    • 2442602083 scopus 로고
    • This work is a convenient reference on the Rouse model because the notation used is identical to that used here
    • (1993) J. Chem. Phys. , vol.98 , pp. 9916
    • Grayce, C.1
  • 43
    • 0027912499 scopus 로고
    • and seem to be inconclusive at this point, so we have chosen here for the sake of argument to enforce agreement with the [formula omitted] reported in the interdiffusion experiments, which implies no end segregation
    • (1993) Macromolecules , vol.26 , pp. 6251
    • Affrossman, S.1
  • 47
    • 85034919507 scopus 로고    scopus 로고
    • A more detailed calculation using mode-coupling theory of [formula omitted] could turn up a dependence on N and quantitative modification of other ripple features. Detailed numerical calculations (Ref. 26) show that the Markov regime, which is expected to apply as [formula omitted] is not attained for experimentally accessible molecular weights, i.e., [formula omitted] Non-Markov or “time-dependent friction” effects influences different Rouse modes in different ways which may be important, especially at the molecular level of calculation, for the ripple question. Moreover, the competition between single-chain conformational relaxation and center-of-mass diffusion is a subtle question still not well understood within the tube model approaches, and this aspect may be important for the ripple experiment (see Fig. 20)
    • For the mode-coupling theory, however, we can only make this statement in the Markov limit in which we have studied the theory in Sec. III B


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.