Biodegradable poly(lactic acid)/organic-montmorillonite Nanocomposites: Preparation and characterization，2009高分子材料先进制造业（青岛）国际论坛（8.19-8.21，青岛）-中国聚合物网,论文下载

Biodegradable poly(lactic acid)/organic-montmorillonite Nanocomposites: Preparation and characterization

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biodegradable poly(lactic acid) nanocomposites intercalated exfoliated

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分子表征

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2009高分子材料先进制造业（青岛）国际论坛（8.19-8.21，青岛）

简介：

Inthiswork,thebiodegradablepoly(lacticacid)(PLA)/organicmontmorillonite(O-MMT)nanocompositesweresuccessfullypreparedbytheinsitupolymerizationintercalationprocessofD,L-lactidewithorganically-modifiedmontmorillonitewhichwasfirsttreatedbyCucationsandsecondtreatedbynhexadecyltrimethylammoniumbromide(CTAB)cations.O-MMTwascharacterizedbyFT-IRandXRD,theresultsshowedthatCucationsandCTABcationshadbeeninsertedtotheinterlayerofMMT,andtheinterlayerspacingofCTAB-Cu-MMT(OMMT)increasedby1.829nm.ThebiodegradablePLA/O-MMTnanocompositeswerecharacterizedbyXRD,SEM,FT-IR,TG,andtheresultsshowedthatsilicatelayerswereintercalatedintothePLAmatrixandthebiodegradablePLA/O-MMTnanocompositeswereoftwodifferenttypes:intercalatednanocompositesandexfoliatednanocomposites.ThisnewnanocompositesfrequentlyexhibitedremarkableimprovementswhencomparedwiththeneatPLAmatrix.Improvementscouldincludeincreasedheatdistortiontemperature,anincreaseinthebiodegradabilityrateofbiodegradablepolymers.

作者：

Nali Chen1,a,Huixia Feng1,b,Heming Luo1,Dan Zhao1,Jianhui Qiu

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2009-11-04 15:37:33

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