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| CALCULATION OF ENTROPY CHANGE OF PVC IN ANNEALING PROCESS |
| LI Jian (Institute of Solid State Physlcs; Chinese Academy of Sciences) |
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Cite this article:
LI Jian (Institute of Solid State Physlcs; Chinese Academy of Sciences). CALCULATION OF ENTROPY CHANGE OF PVC IN ANNEALING PROCESS. Chin J Mater Res, 1994, 8(6): 555-558.
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Abstract Enthalpy change( H) corresponding to different annealing temperaturewas systematically was measured by using DSC in amorphous polymer PVC (a-PVC). By introducing a concept on structure temperature(θ), entropy change △(S) was easily obtained. On the basic,
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Received: 25 December 1994
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| 1StruikLCE．PhysicalAginginAmorphousPolymersandOtherMaterials,ElsevierScientificPublishingCompany,NewYork—Amsterdam—Oxford,19782NowickAS,BerryBS．AnElasticRelaxationinCrystallineSolids,Chaps、4．AcademicPress,NewYork(1972)3KauzmannW．ChemRev,1948,42:2194DaviesRO,JonesGO．ProcRoySocLond,1953;A217:265Bauwens-CrowetC,BauwensJC．Polymer,1982;23:15996钱保功,许观藩,余赋生高聚物的转变与松弛,第一章北京:科学出版社,1986 |
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