|
HKUST Institutional Repository >
Chemical and Biomolecular Engineering >
CBME Conference Papers >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1783.1/1630
|
| Title: | A macroscopic theory for surface segregation in and copolymers and polyblends |
| Authors: | Wong, David Shan Hill
Chan, Chi-Ming |
| Keywords: | Gradient theory
Polymer surface segregation
Polyblends
Surface phase transition
Flory-Huggins model
SAFT |
| Issue Date: | 1999 |
| Citation: | Preprints of Second East Asian Polymer Conference, Hong Kong, 12-16 Jan 1999, Hong Kong University of Science and Technology, Hong Kong, 1999, p. 41-47 |
| Abstract: | In this work, the gradient theory was used to explain and correlate some of the phenomena observed for polymer surface segregation. The surface segregation data of poly(styrene-co-4-vinylphenol) (STVPh) and poly(styrene-co-4-pyridine) (STVPy) polyblends are explained using the concept of surface phase transition. Experimental data of fully miscible blends poly(vinyl alcohol)+poly(N-vinyl-2-pyrrolidone) blends are correlated using Flory-Huggins model and gradient theory. The SAFT is used to develop a thermodynamic model for copolymer. It is combined with gradient theory o[f] explain the effect of concentration and chain sequencing on surface segregation for the copolymer poly(acrylonitrile-butadiene). |
| URI: | http://hdl.handle.net/1783.1/1630 |
| Appears in Collections: | CBME Conference Papers
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| polymer13.pdf | | 646Kb | Adobe PDF | View/Open |
|
All items in this Repository are protected by copyright, with all rights reserved.
|
