Microstructure evolution of isotactic polypropylene during annealing: Effect of poly(ethylene oxide)
نویسندگان
چکیده
منابع مشابه
the effect of e-64 on the developmental competence of sheep cocs during in vitro maturation
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Extensional-flow-induced crystallization of isotactic polypropylene
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Dispersions of isotactic polypropylene (PP) particles in polystyrene (PS) were produced by interfacially driven breakup of nanolayers in multilayered systems that were fabricated by means of layer-multiplying coextrusion. The droplet size was controlled by the individual PP layer thickness ranging from 12 to 200 nm. In addition, PP was melt blended with PS to produce PP droplets larger than tho...
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Bulk isotactic polypropylene in the a form was studied using density functional theory-based computations. The computed physical structure of this system is in excellent agreement with available experimental data. The electronic band structure, ionization potential, and electron affinity were also determined. The impact of various types of chemical imperfections (including double bond, hydroxyl...
متن کاملMorphological changes during annealing of polyethylene nanocrystals.
Polymer crystals are metastable and exhibit morphological changes when being annealed. To observe morphological changes on molecular scales we started from small nanometer-sized crystals of highly folded long-chain polymers. Micron-sized stripes consisting of monolayers or stacks of several layers of flat-on oriented polyethylene nanocrystals were generated via evaporative dewetting from an aqu...
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ژورنال
عنوان ژورنال: Chinese Journal of Polymer Science
سال: 2012
ISSN: 0256-7679,1439-6203
DOI: 10.1007/s10118-012-1121-7