Li Chen

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Name: 陈莉
Organization: Nanjing University of Technology , China
Department:
Title: Professor(PhD)

TOPICS

Co-reporter:Lifang Wang, Shengyang Yang, Jing Wang, Caifeng Wang, Li Chen
Materials Letters 2011 Volume 65(Issue 5) pp:869-872
Publication Date(Web):15 March 2011
DOI:10.1016/j.matlet.2010.12.024
In this work, we described an electrospinning process for creating superhydrophobic thermoplastic polyurethanes (TPU) mat with bead-on-string morphologies. The initially hydrophobic TPU electrospun film presented superhydrophobic trait after treatment with hydrophobic nanosilicas, which was pre-fabricated by refluxing nanosilicas in a toluene solution of hexadecyltrimethoxysilane (HDTMS). The relationship between the microstructures and wettability was also discussed. This superhydrophobic TPU film turned out to be benign materials for separating oil and water mixture. The development of the electrospun process described in this paper, as well as the extension of our method, will no doubt facilitate the achievement of other functional superhydrophobic films for various applications.
Co-reporter:Jun Tu;Yuan Fang;Caifeng Wang ;Su Chen
Journal of Polymer Science Part A: Polymer Chemistry 2010 Volume 48( Issue 4) pp:823-831
Publication Date(Web):
DOI:10.1002/pola.23830

Abstract

We report a new facile strategy for quickly synthesizing poly(2-hydroxyethyl acrylate-co-vinyl versatate) amphiphilic gels with excellent physicochemical properties by frontal free-radical polymerization. The appropriate amounts of 2-hydroxyethyl acrylate, vinyl versatate (VeoVa 9) and ammonium persulfate initiator were mixed together at ambient temperature in the presence of N-methyl-2-pyrrolidone as the solvent medium. Frontal polymerization (FP) was initiated by heating the wall of the tube with a soldering iron. Once initiated, no further energy was required for the polymerization to occur. The dependence of the front velocity and front temperature on the initiator concentration was investigated. The front temperatures were between 132 and 157 °C, depending on the initiator concentration. The morphology, swelling rate, and swelling behavior of amphiphilic gels prepared via FP were comparatively investigated on the basis of scanning electron microscopy, water contact angle, and swelling measurements. Results show that the amphiphilic gels prepared via FP behave with good swelling capacity both in water and organic solvents. The FP can be exploited as an alternative means for synthesis of amphiphilic gels with additional advantages of fast and efficient way. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 823–831, 2010

Losartan-d4 Carboxylic Acid
LOSARTAN-D4
1,1'-Biphenyl, 4-methoxy-2,2'-dimethyl-