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6607940 
Journal Article 
Synthesis and characterization of styrene-N-phenyl maleimide/montmorillonite nanocomposites prepared through emulsion polymerization 
Guodong, L; Liucheng, Z; Zongjian, L; Xiongwei, Q 
2005 
Yes 
Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628 
JOHN WILEY & SONS INC 
HOBOKEN 
98 
3 
1010-1015 
WOS:000231830500010 
Composites of organomodified (OMMT) and pristine montmorillonite (MMT) intercalated by styrene-N-phenyl maleimide (PMI) copolymer were prepared by emulsion intercalative polymerization. X-ray diffraction (XRD) and transmission electron microscopy results show that the dispersability of clay in the matrix was greatly improved by the incorporation of polar moiety PMI. The dispersability of OMMT in the matrix is better than MMT. XRD patterns of the extracted nanocomposites showed that d001 of the clay are much larger than that of the original OMMT and MMT, which indicates that the interaction of copolymer with the clay layers was greatly improved by incorporation with polar monomer PMI. The thermal property of the composites was greatly improved by the intercalation with clay. The DSC results showed that the glass transition of the composites became inconspicuous, which indicated that the movement of the polymer segment was extremely confined by the clay layer. The consistency factor of the melts of the composites increased monotonically with a decreasing flow index showing stronger shear thinning property of the composites. The rheological activity energy of the composites decreased more than that of the pure copolymer.