PHYSICAL AGING IN ISOTACTIC POLYPROPYLENE

Ibhadon AO.

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PHYSICAL AGING IN ISOTACTIC POLYPROPYLENE

机译：等规聚丙烯的物理老化

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Physical aging studies were made using commercial and laboratory samples of isotactic polypropylene. Linear and nonlinear viscoelastic responses were measured after quenching the glass from above the glass transition temperatures to below the glass transition. Results show that aging is not eliminated by large mechanical deformations; rather, the time required for the glass to age into equilibrium is independent of the applied stress. Results obtained are purely kinetic and interpreted as the effects accompanying the process of glass formation in a semicrystalline polymer. (C) 1996 John Wiley & Sons, Inc. [References: 11]

机译：使用等规聚丙烯的商业和实验室样品进行物理老化研究。在从玻璃化转变温度以上至玻璃化转变温度以下淬灭玻璃后，测量线性和非线性粘弹性响应。结果表明，大的机械变形不能消除老化。相反，玻璃老化达到平衡所需的时间与所施加的应力无关。所得结果纯属动力学，并解释为伴随半结晶聚合物中玻璃形成过程的影响。（C）1996 John Wiley＆Sons，Inc. [参考：11]

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《Journal of Applied Polymer Science》 |1996年第11期|共4页
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Ibhadon AO.;
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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物产品;有机化学;
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4. MELT-MASTICATION OF ISOTACTIC POLYPROPYLENE FOR IMPROVED THERMAL AND PHYSICAL PROPERTIES [C] . Brian M. Cromer, E. Bryan Coughlin, Alan J. Lesser Technical Conference of the Society of Plastics Engineers . 2017

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5. Morphology, physical and tensile properties of quench-cooled isotactic polypropylene films and spunbonded fabrics. [D] . Caldas, Victor. 1995

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6. Effects of Solid-State Stretching on Microstructure Evolution and Physical Properties of Isotactic Polypropylene Sheets [O] . Huajian Ji, Xulin Zhou, Xin Chen, 2019

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8. Compatibilizing Effect of a Diblock Copolymer of Isotactic Polystyrene and Isotactic Polypropylene in Blends of the Corresponding Homopolymers [R] . Cohen, R. E., DelGiudice, L., Attalla, G., 1984

机译：均相聚苯乙烯和等规聚丙烯二嵌段共聚物在相应均聚物共混物中的相容性

PHYSICAL AGING IN ISOTACTIC POLYPROPYLENE

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