Morphology and thermal behaviour of poly(methyl methacrylate)/poly(ethylene glycol) semi-interpenetrating polymer networks

• SHANGGUAN LIN-JIAN ^[1] ; LIU GUOQIN ^[1]
  1. [1] North China University of Water Conservancy and Electric Power School of Mechanical Engineering
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 56, Nº. 4, 2011, págs. 918-921
• Idioma: inglés
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• Resumen

  • Poly(methyl methacrylate) (PMMA) networks and linear poly(ethylene glycol) (PEG) can form semi-interpenetrating polymer networks (semi-IPNs), i.e. PMMA/PEG semi-IPNs. The morphology and thermal behaviors of PMMA/PEG semi-IPNs was studied by DSC, TEM, Optical Microscopy, and SEM. The results indicated that the content of PEG and the cross-linking density of PMMA networks have an important influence on the phase separation in the PMMA/PEG semi-IPNs. When the content of PEG and cross-linking density is more than 35 and 3.5 wt%, respectively, PMMA/PEG semi-IPNs are a mixture of PEG in the crystalline state with PMMA networks in the amorphous state.