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The transcrystal plays an important role in the enhancement of mechanical and thermal performances for polymer/glass fiber composites. Shear has been found to be a very effective way for the formation of transcrystal. Our purpose of this study was to explore the possibility to obtain the transcrystal in real processing such as injection molding. We will report our recent efforts on exploring the development...
In this paper, EPDM rubber and nano-SiO 2 particles were employed to modify PP simultaneously. Our goal was to control the distribution and dispersion of EPDM and nano-SiO 2 particles in PP matrix by using an appropriate processing method and adjusting the wettability of nano-SiO 2 particles toward PP and EPDM, so as to achieve a simultaneous enhancement of toughness and modulus...
To achieve a good biocompatibility, two sets of novel segmented polyurethanes, namely, poly(ether urethane)s and poly(carbonate urethane)s, with long side chain fluorinated alkyl phosphatidylcholine polar head groups attached to hard block have been synthesized recently in our laboratory by using a new diol with a long side chain fluorinated alkyl phosphatidylcholine polar head group 2-[2-[2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-hexadecafluoro-10-ethoxy-decyloxy]-N-(2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-acetamide]...
It has been well established that polyurethanes exhibit a two-phase micro-structure due to the thermodynamic incompatibility between the soft segments and hard segments. In this work, we reported the effect of fluorinated side chain attached on hard segment on the phase separation and surface topography of polyurethanes. Two sets of fluorinated polyurethanes, namely, poly(ether urethane)s and poly(carbonate...
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