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Citation: TAO Huichun, ZHANG Shuangshuang, ZHANG Jingying, AI Shuping, YOU Jichun. In-situ Atomic Force Microscopy Study on Phase Diagram of Poly(methyl methacrylate)/Poly(styrene-co-acrylonitrile) Blend Films Surface[J]. Chinese Journal of Applied Chemistry, ;2014, 31(1): 29-32. doi: 10.3724/SP.J.1095.2014.30122 shu

In-situ Atomic Force Microscopy Study on Phase Diagram of Poly(methyl methacrylate)/Poly(styrene-co-acrylonitrile) Blend Films Surface

1.
a Department of Basic Science, Jilin Jianzhu University, Changchun 130118, China;
2.
b College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China

Corresponding author: TAO Huichun,
Received Date: 12 March 2013
Available Online: 31 May 2013
Fund Project: 浙江省杰出青年基金(R4110021)资助项目 (R4110021)

The phase diagram of surface phase separation in poly(methyl methacrylate)/poly(styrene-coacrylonitrile)(PMMA/SAN) blend film with thickness of 130 nm was obtained by in-situ atomic force microscopy(AFM).The results show that the blend film has a lower critical system temperature(LCST) compared with the reported ex-situ phase diagram.The critical phase separation temperature was found to increase and the observed composition symmetry in ex-situ phase diagram was no longer existed.The difference between in-situ and ex-situ results can be ascribed to the thinner thickness of the film,different heat history and stronger substrate effect.
- polymer blend,
- phase separation,
- in-situ,
- atomic force microscopy
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