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Miscibility behaviour of amorphous poly(3-hydroxybutyrate) (a-PHB)/styrene–vinyl phenol copolymer (STY-co-VPH) blends applying an association model
- Source :
-
Polymer . Mar2004, Vol. 45 Issue 5, p1477. 7p. - Publication Year :
- 2004
-
Abstract
- In this work a Fourier transform infrared (FTIR) study of blends of styrene–vinyl phenol copolymers (containing different proportions of styrene) with atactic PHB is presented. The equilibrium constant describing phenolic OH/ester carbonyl hydrogen bonds <f>(KA)</f> has been experimentally determined from the quantification of the hydrogen-bonded carbonyl group fraction as a function of temperature, and the effect of functional group accessibility on <f>KA</f> values has been discussed. An average value of <f>KA=41</f> has been employed to perform a prediction of miscibility maps employing the association model of Painter and Coleman. A fairly good agreement between theoretical predictions and experimental results has been obtained. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00323861
- Volume :
- 45
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Polymer
- Publication Type :
- Academic Journal
- Accession number :
- 12097073
- Full Text :
- https://doi.org/10.1016/j.polymer.2003.12.053