Journal of the Chilean Chemical Society
versión ISSN 0717-9707
LIN-JIAN, SHANGGUAN y GUOQIN, LIU. MORPHOLOGY AND THERMAL BEHAVIOUR OF POLY(METHYL METHACRYLATE)/POLY(ETHYLENE GLYCOL) SEMI-INTERPENETRATING POLYMER NETWORKS. J. Chil. Chem. Soc. [online]. 2011, vol.56, n.4, pp. 918-921. ISSN 0717-9707. doi: 10.4067/S0717-97072011000400020.
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.
Palabras clave : poly (methyl methacrylate); poly (ethylene glycol); semi-IPNs; morphology; thermal behavour.