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Volumn 38, Issue 14, 2005, Pages 6216-6226

Miscible polyisoprene/polystyrene blends: Distinct segmental dynamics but homogeneous terminal dynamics

Author keywords

[No Author keywords available]

Indexed keywords

GORDON-TAYLOR MIXING RULE; HOMOGENEOUS TERMINAL DYNAMICS; POLYSTYRENE BLENDS; SEGMENTAL DYNAMICS;

EID: 22944491741     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma0505225     Document Type: Article
Times cited : (30)

References (71)
  • 2
    • 0024691760 scopus 로고
    • Colby, R. H. Polymer 1980, 30, 1275-1278.
    • (1980) Polymer , vol.30 , pp. 1275-1278
    • Colby, R.H.1
  • 35
    • 22944490725 scopus 로고    scopus 로고
    • note
    • A recent model from Haley et al. based upon the Lodge/ McLeish model is successful in anticipating the experimentally observed curvatures in plots of viscosity vs composition, and the predictions are in reasonable agreement with the data for several systems tested (ref 23).
  • 57
    • 22944449545 scopus 로고    scopus 로고
    • note
    • g and molecular weight cited in ref 36.
  • 58
    • 22944457079 scopus 로고    scopus 로고
    • note
    • For the PS component, no junction effect is included as we assume that there is no significant difference in the segmental dynamics between a free end group and an end group connected to a (much faster) PI chain. For the PI component, we assume that there are four repeat units near the junction point for which the segmental dynamics are significantly slowed by the connected PS chain. In the Lodge/McLeish model we replace eq 13 with eqs 7 and 8 in ref 32.
  • 62
    • 22944454051 scopus 로고    scopus 로고
    • note
    • For PB/PVE, an "object" solution of entangled PB in oligomeric PVE and a "mirror" solution of entangled PVE in oligomeric PB were studied (ref 21), and the friction coefficients of the entangled component in each type of blend were extracted. Thus, the terminal activation energies of PB and PVE in Figure 7 are not from the same blend.
  • 66
    • 22944479814 scopus 로고    scopus 로고
    • note
    • In Figure 7 from left to right, the five systems have thermodynamic interaction parameters (Χ) of -0.004, 0.002, -0.0002. 0.094, and -0.002 (refs 25 and 31).
  • 71
    • 22944436685 scopus 로고    scopus 로고
    • note
    • 0 = 170 K, B = 393 K.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.