Mesua ferrea L. seed oil based acrylate-modified thermostable and biodegradable highly branched polyester resin/clay nanocomposites
作者： Uday Konwar , Manabendra Mandal , Niranjan Karak
DOI: 10.1016/J.PORGCOAT.2011.07.010
关键词: Thermal stability 、 Polyester 、 Nanocomposite 、 Acrylate 、 Ultimate tensile strength 、 Composite material 、 Materials science 、 Polyester resin 、 Exfoliation joint 、 Polymer
摘要: Mesua ferrea L. seed oil based highly branched polyester resin was modified by methyl methacrylate through grafting polymerization technique. The nanocomposites of this acrylate-modified and 1–5 wt% loadings organically montmorrilonite (OMMT) nanoclay were prepared an ex situ technique using strong mechanical mixing ultrasonication. Formation confirmed X-ray diffractometeric (XRD), scanning electron microscopic (SEM) transmission (TEM) analyses. absence d0 0 1 reflections OMMT in XRD TEM study revealed the partial exfoliation polymer chain. homogeneous surface morphology also ascertained from SEM. Mechanical thermal studies showed appreciable improvement tensile strength stability loading. enhancement 2.5 times 32 °C for 5 filled nanocomposite observed compared to that pristine system. rheological behavior investigated shear thinning observed. Biodegradation films assayed two strains Pseudomonas aeruginosa, SD2 SD3 one strain Bacillus subtilis, MTCC736. exhibited enhanced biodegradability as acrylate polyester. All results potentiality advanced thin film materials suitable applications.
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