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Mechanisms of nucleation and crystal growth in a nascent isotactic polypropylene/poly (ethylene-co-octene) inreactor alloy investigated by temperatureresolved synchrotron SAXS and DSC methods
The in-reactor alloying isotactic polypropylene (iPP) with polyolefin copolymers (e.g., ethylene and other α-olefins copolymer) by sequential multi-stage polymerization has been proved superior both in polymer propertiesand in production cost. The&n...
http://www.polymer.cn/research/dis_info16924 |
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Monte Carlo Simulations of Reversible Melting on the Fold-end Surfaces of Polymer Lamellar Crystals
关键字:Lamellar crystal Monte Carlo simulations Temperature modulated DSC Reversible melting Reversible melting process exists at the fold-end surfaces of polymer lamellar crystals. This process has been evidenced by both experiments nd molecular simulations.
http://www.polymer.cn/research/dis_info16090 |
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表面修饰PET 结晶性能研究
关键字:pet,表面修饰,结晶,dsc 采用表面修饰技术对拉伸后的PET 纤维进行修饰。研究了PET 纤维在三维受限条件下的结晶行为。通过DSC 结晶曲线,发现修饰后的PET 纤维没有明显的冷结晶峰出现,可能是由于将修饰壁材配制成溶液进行修饰时,溶剂诱导了部分结晶,从而导致修饰后PET纤维的结晶量变少。修饰后的PET 纤维均出现了熔融双峰现象,随着拉伸比的增加,双峰由低温峰增大向高温峰增大转折。
http://www.polymer.cn/research/dis_info6639 |
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Curing kinetics study of diglycidyl ether of bisphenol A modified with liquid crystalline epoxy by non-isothermal DSC data
关键字:Liquid crystalline epoxy;Curing kinetic; Activation energy The cure kinetics study of diglycidyl ether of bisphenol A(E-51) modified with liquid crystalline epoxy PHQEP in presence of 4,4′-diaminodiphenylsulfone (DDS) as the curing agent was performed by non-isothermal differential scanning alorimetry(...
http://www.polymer.cn/research/dis_info5730 |
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Miscibility of SMA and Partially imidized Styrene N-phenyl succinimide copolymer (SMI) with PMMA and PVME
关键字:imide; blend miscibility; DSC; small angle light scattering Copolymers of styrene and maleic anhydride (SMA) are known to have good heat resistance and are widely used in commercial applications requiring good performance at elevated temperatures.
http://www.polymer.cn/research/dis_info5222 |
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Understanding charge transfer stacking mode in cocrystals involving Tetrachloro-p-benzoquinone via experimental (SXRD, DSC-TGA, DRS) studies and hirshfeld surfaces analysis
M Du?,M Wang*,R Zhang. Understanding charge transfer stacking mode in cocrystals involving Tetrachloro-p-benzoquinone via experimental (SXRD, DSC-TGA, DRS) studies and hirshfeld surfaces analysis.Crystal Research & Technology, 2017,3,
http://www.polymer.cnt//ss/wangml/publicationsshow_12627.html |
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9. "DSC and TMDSC Study of Melting Behaviour of Poly(butylene succinate) and Poly(ethylene succinate)". Qiu ZB,* Komura M, Ikehara T, and Nishi T.* Polymer 2004; 44: 7781-7785.
The subsequent melting behaviour of poly(butylene succinate) (PBSU) and poly(ethylene succinate) (PES) was investigated using DSC and TMDSC after they finished nonisothermal crystallization from the melt. PBSU exhibited two melting endotherms in the DSC traces upon heating to the melt, which was ascribed to the melting and recrystallization mechanism. However, one melting endotherm with on...
http://www.polymer.cnt//ss/qiuzhaobin/publicationsshow_463.html |
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29. DSC and TEM investigations on multiple melting phenomena in isotactic polystyrene. Liu T, Yan S, Bonnet M, Lieberwirth I, Rogausch KD, Petermann J. J. MATER. SCI. 35 (20): 5047-5055, 2000.
The multiple melting behavior and morphologies of isotactic polystyrene (iPS) isothermally crystallized from the glassy state have been investigated by differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). The combination of thermal analysis and morphological results indicates that two lamellar populations are responsible for the so-called double melting behavior in i...
http://www.polymer.cnt//ss/liutianxi/publicationsshow_151.html |
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Nonisothermal crystallization kinetics of in situ nylon 6/graphene composites by differential scanning calorimetry.
关键字:nylon 6/graphene composites, non-isothermal crystallization kinetics; differential scanning calorimetry (DSC) The non-isothermal crystallization kinetics were investigated by differential scanning calorimetry for the nylon 6/graphene composites prepared by in situ polymerization. The Avrami theory modified by Jeziorny、Ozawa equation and Moequation were used to describe the non-isothermal crystallization kinetics. The Analysis based on the Avrami theory modified by Jeziorny shows that,at lower cooling ra...
http://www.polymer.cn/research/sy_info14754 |
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纳米Pb和Bi的热稳定性
关键字:纳米Pb 纳米Bi 熔点 熔化焓 DSC-TG 利用综合热分析仪(DSC-TG)对纳米Pb(粒晶为90~150nm)和Bi(粒晶为90~130 nm)与体相Pb和Bi的熔点和熔化焓以及热稳定性等热力学性质进行了研究。实验结果表明:纳米Pb和Bi比块体的Pb和Bi有更高的吸附能力和化学活性。纳米Pb比块体的Pb熔点降低2.3℃,熔化焓降低59.0%,纳米Bi比块体的Bi熔点降低5.3℃,熔化焓降低47.95%。
http://www.polymer.cn/research/ct_info116 |
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