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Sequence distribution affect the phase behavior and hydrogen bonding strength in blends of poly(vinylphenol-co-methyl methacrylate) with poly(ethylene oxide)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lin, Chen-Lung Steve Chen, Wan-Chun Kuo, Shiao-Wei Chang, Feng-Chih |
| Copyright Year | 2006 |
| Abstract | Experimental results indicate that the PEO was miscible with PVPh-r-PMMA copolymers as shown by the existence of single compositiondependent glass transition temperature over the entire compositions. However, the PVPh-b-PMMA copolymer with PEO shows a like closed loop phase-separated region in this copolymer/homopolymer blend system. Furthermore, FTIR reveals that at least three competing equilibrium are present in these blends; self-association (hydroxyl–hydroxyl), interassociation (hydroxyl–carbonyl) of PVPh-co-PMMA, and hydroxyl–ether interassociation between PVPh and PEO. Based on the Painter–Coleman Association Model (PCAM), a value for inter-association, KCZ300 is obtained in PVPh-b-PMMA/PEO blend system at room temperature. Although the relative ratio of interassociation equilibrium constant of PEO to PMMA is larger in PVPh-b-PMMA/PEO blend system, the PVPh-r-PMMA/PEO blend system has greater Dn and greater homogeneity at the molecular scale than the PVPh-b-PMMA/PEO blend system because of the DK effect. q 2006 Published by Elsevier Ltd. |
| Starting Page | 3436 |
| Ending Page | 3447 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.polymer.2006.03.071 |
| Volume Number | 47 |
| Alternate Webpage(s) | https://ir.nctu.edu.tw/bitstream/11536/12264/1/000237859400018.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.polymer.2006.03.071 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
