SYNTHESIS OF TRIS(1 OXO 2,6,7 TRIOXA 1 PHOSPHOBICYCLO[2.2.2] OCTANE METHYLENE 4) PHOSPHATE AND ITS APPLICATIONS IN POLYCARBONATE，2008纳米填充阻燃聚合物及复合材料国际学术研讨会（10.16-10.17，北京）-中国聚合物网,论文下载

SYNTHESIS OF TRIS(1 OXO 2,6,7 TRIOXA 1 PHOSPHOBICYCLO[2.2.2] OCTANE METHYLENE 4) PHOSPHATE AND ITS APPLICATIONS IN POLYCARBONATE

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PDF文件

关键词：

synthesis trimer self-made catalyst flame retardant polycarbonate

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766K

所属学科：

分子表征

来源：

2008纳米填充阻燃聚合物及复合材料国际学术研讨会（10.16-10.17，北京）

简介：

Tris(1oxo2,6,7trioxa1phosphobicyclo[2.2.2]octanemethylene4)phosphate(trimer)wassynthesizedfrom1oxo4-hydroxymethyl2,6,7trioxa1phosphobicyclo[2.2.2]octane(PEPA)andPOCl3inthepresenceofaspecialcatalystwiththeyeildof92.6%.Theobtainedproductwascharacterizedandtestifiedbyelementalanalysis,IRand1HNMR.TGAdatashowthattrimerhasanexcellentheatresistanceandalargepercentageofcharyeildaswell.Trimerwasemployedtoflameretardpolycarbonate(PC)anditseffectsonflameretardancy,mechanicalproperties,thermaldecompositionbehaviorandresidueafterburningofPCwerestudied.8%add-onoftrimercanimpartPCUL94V-0rating(3.2mm)andtheLOIof33%.Notably,trimerimprovestensilestrength,especiallyflexualstrengthandflexualmodulus.IRdataandthermaldecompositiondatashowthattrimeracceleratescrosslinkingandcharformingofPC,butcannotenhancecharyeild.Inaddition,SEMpicturesindicatethattrimerpromotesfoamingandcharexpansionslightly,andimprovegullysoncharsurfaceaswell.

作者：

Yi Zhao, Yuxiang Ou

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2009-02-16 15:14:35

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gl-xu 2009-03-03 20:24:15

好像很麻烦的

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