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The preparation, characterization, materials properties, crystallization behavior and biodegradability of a polylactide (PLA)/organically modified layered silicate nanocomposite is described. Wide-angle X-ray diffraction and high-resolution TEM analyses confirmed that intercalated stacked and disordered/exfoliated mica layers coexist in the nanocomposite. The nanocomposite showed improved materials properties and crystallization behavior with a simultaneous improvement in biodegradability as compared to neat PLA. Degree of biodegradation (i.e. CO2 evolution) of neat PLA and PLACN4 under compost conditions.
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Ray et al. (2002) studied this question.
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