✦ LIBER ✦

Molecular weight dependence of surface tension of polystyrene as studied by the corresponding states principle

✍ Scribed by K. K. Chee

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 142 KB
Volume: 70
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19981024)70:4<697::aid-app8>3.0.co;2-l

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✦ Synopsis

The corresponding states correlation with the surface tension (␥) of polymers after Patterson et al. has been modified by considering the molecular weight (M) dependence of the equation-of-state parameters, which may be estimated by either the Flory-Orwoll-Vrij (FOV) theory or the cell model (CEM). It has been found that the corresponding states principle-cum-FOV predicts the ␥s of polystyrene melts over a wide range of M satisfactorily. However, its CEM counterpart is rather irrelevant to the present system of interest. Indeed, the three classical linear equations proposed for the variations of ␥ with M are intimately correlated with the foregoing models, and hence, facilitating the predictions of the ␥s of polymer end groups.

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