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Polymer Blends Containing Liquid Crystalline Component Cholesteryl Palmitate-containing Blends

光散射学报 2005年第3期17卷 231-233页

作者： Maria-Cristina Popescu Cornelia Vasile Daniela Filip doina macocinschi Gh.Singurel Romanian Academy "Petru Poni"Institute of Macromolecular Chemistry41 A Grigore Ghica Voda AlleyIasiRomania "Al.I.Cuza"University Faculty of PhysicsOptics and Spectroscopy Department11 Blvd.Carol IIasiRomania

Physical blends containing macromolecular compounds and low molecular weight liquid crystals(LCs)have important *** are used as reinforcements for amorphous polymers or in display *** addition of LCs to amorphous polymers determines improvements in the mechanical properties of polymeric *** to their mechanical anisotropy,which results from molecular alignment,the LC molecules may orient themselves in the shear field of a processing *** cooling,this orientation may impart to the composites some improvements in the mechanical properties similar with that found with fibrous reinforcements,but with the advantage that the additive acts also as a *** glass transition temperature and the viscosity of the blend are lower than those of the starting polymer.

关键词： reinforcements Physical containing

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含液晶成分的掺杂共聚物和胆甾醇基棕榈酸盐(或酯)掺合物(英文)

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光散射学报 2005年第3期 43-45页

作者： Maria-Cristina Popescu,Cornelia Vasile,Daniela Filip,doina macocinschi,Gh. Singurel Romanian Academy “Petru Poni" Institute of Macromolecular Chemistry 41 A Grigore Ghica Voda Alley Iasi Romania Romanian Academy “Petru Poni" Institute of Macromolecular Chemistry 41 A Grigore Ghica Voda Alley Iasi Romania Romanian Academy “Petru Poni" Institute of Macromolecular Chemistry 41 A Grigore Ghica Voda Alley Iasi Romania Romanian Academy “Petru Poni" Institute of Macromolecular Chemistry 41 A Grigore Ghica Voda Alley Iasi Romania “Al. I.Cuza" University Faculty of Physics Optics and Spectroscopy Department 11 Blvd. Carol I Iasi Romania

Physical blends containing macromolecular compounds and low molecular weight liquid crystals (LCs) have important applications. LCs are used as reinforcements for amorphous polymers or in display devices. The addition of LCs to amorphous polymers determines improvements in the mechanical properties of polymeric composites. Due to their mechanical anisotropy, which results from molecular alignment, the LC molecules may orient themselves in the shear field of a processing operation. Upon cooling, this orientation may impart to the composites some improvements in the mechanical properties similar with that found with fibrous reinforcements, but with the advantage that the additive acts also as a plasticizer. The glass transition temperature and the viscosity of the blend are lower than those of the starting polymer.

关键词： PEA CP cm

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