Reaction kinetics and morphological changes of reactive polymer-polymer interface
SCIE
SCOPUS
- Title
- Reaction kinetics and morphological changes of reactive polymer-polymer interface
- Authors
- Kim, HY; Jeong, U; Kim, JK
- Date Issued
- 2003-03-11
- Publisher
- AMER CHEMICAL SOC
- Abstract
- The temporal change of complex viscosity (eta(*)) of two plates consisting of an end-functional monocarboxylated polystyrene (PS-mCOOH) and poly(methyl methacrylates) (PMMA) with various amounts of poly(methyl methacrylate-ran-glycidyl methacrylate) (PMMA-GMA) was measured by a rotational rheometer. There were three distinct stages for the change of eta(*) with time: (i) stage I, where eta(*) increased rapidly at short times and approached a steady value at later times; (ii) stage II, where eta(*) did not change; and (iii) stage III, where eta(*) increased slowly again and reached a final value. The apparent reaction kinetics obtained from the results in stage I was a first-order reaction. The change of the interfacial roughness between two plates with reaction time was investigated by transmission electron microscopy and atomic force microscopy after selective removal of unreacted PS-mCOOH layer. At long reaction times, the interface became pinched off, and then microemulsions (and micelles) were formed in the PMMA phase.
- Keywords
- IN-SITU COMPATIBILIZER; END-FUNCTIONALIZED CHAINS; POLYMER/POLYMER INTERFACES; PS/PMMA INTERFACE; GRAFT-COPOLYMERS; BLOCK-COPOLYMERS; MUTUAL DIFFUSION; SAN/EPR BLENDS; PULL-OUT; POLYAMIDE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/18652
- DOI
- 10.1021/MA0257907
- ISSN
- 0024-9297
- Article Type
- Article
- Citation
- MACROMOLECULES, vol. 36, no. 5, page. 1594 - 1602, 2003-03-11
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