INVESTIGATION OF THE COMPATIBILITY FOR PVC BLEND BY REDUCED VISCOMETRIC METHOD

Authors
Citation
Wf. Lee et Cc. Lai, INVESTIGATION OF THE COMPATIBILITY FOR PVC BLEND BY REDUCED VISCOMETRIC METHOD, Journal of applied polymer science, 66(4), 1997, pp. 761-775
Citations number
22
Categorie Soggetti
Polymer Sciences
ISSN journal
00218995
Volume
66
Issue
4
Year of publication
1997
Pages
761 - 775
Database
ISI
SICI code
0021-8995(1997)66:4<761:IOTCFP>2.0.ZU;2-8
Abstract
A new method is presented to predict the compatibility of a polymer bl end. The compatibility of the polymer-polymer pairs containing poly(vi nyl chloride) (PVC), poly(glycidyl methacrylate) [poly(GMA)], poly(met hyl methacrylate) [poly(MMA)], and poly(styrene) (PS) predicted by the use of the deviation from the additivity law of the slope in the redu ced viscosity (eta(sp)/C) versus polymer concentration (C) plot of a b inary blend system is the purpose of this article. In addition, the in fluence of the grafted copolymer (PVC-g-GMA) on the compatibility of P VC-poly(GMA) pairs is also investigated by this reduced viscosity meth od and also confirmed by the differential scanning calorimetric techni que. The results contrasted to the thermodynamic principle showed that the polymer blends could be considered to be a compatible blend when the deviation values deviated from the additivity law of the slopes in the eta(sp)/C vs. C plot are smaller than 15%. (C) 1997 John Wiley & Sons, Inc.