【摘 要】
：
A new phosphorylcholine, (6-hydroxy)hexyl-2-(trimethylammonio)ethyl phosphate (HTEP), was synthesized and characterized. Segmented polyurethane (SPU) containing
【机 构】
：
Research Center on Surface and Interface Chemistry Engineering and Technology
论文部分内容阅读
A new phosphorylcholine, (6-hydroxy)hexyl-2-(trimethylammonio)ethyl phosphate (HTEP), was synthesized and characterized. Segmented polyurethane (SPU) containing phosphorylcholine structure was synthesized based on diphenylmethane diisocyanate (MDI), soft segment polytetramethylene glycol (PTMG) and HTEP, with 1,4-butanediol (BD)as a chain extender. The existence of phosphorylcholine structure on the surface of SPU was revealed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS) and water contact angle measurements. The blood compatibilities of the polymers were evaluated by hemolytic testing and a platelet-rich plasma (PRP) adhesion experiment, which was viewed by scanning electron microscopy (SEM) with polyurethane as a reference. The novel segmented polyurethane containing phosphorylcholine structure showed improved blood compatibility.
其他文献
In the case of Pd(PPh3)4 as catalyst and toluene as reaction solvent, the desired biaryls and polyaryls were synthesized in excellent yicld and on a large scale
Objective To evaluate transcervical removal of foreign bodies (TCRF) and to estimate the effectiveness of its monitoring methods. Methods One hundred and thir
Highly active CNT-promoted co-precipitated Cu-ZnO-Al2O3 catalysts, symbolized asCuiZnjAlk-x%CNTs, were prepared, and their catalytic activity for once-through m
The method of characteristics was adopted to analyze water level fluctuation existing in Bull-Horn surge chamber in reservoir-valve pipe system during waterhamm
A novel antimicrobial polypeptidc was isolated and charaeterized from loach,Misgurmis anguillieaudatus, The polypcptide, named MAPP, is a single-chain polypcpti
Amphiphilic block copolymers can exhibit rich and complex morphologies in aqueous solutions, but these structures are usually delicate, easily disturbed by comp
The electrocatalysts of Pt/C, PtRu/C and Ru/C were prepared by the impregnation method. The facet characterization, the dispersion and the particle size for the
The authors show that the self-similar set for a finite family of contractive similitudes (sim-ilarities, i.e., |fi(x) - fi(y)| = ai|x - y|, x,y ∈ RN, where 0
Crystalline TiO2 nanoparticles were synthesized by hydrolysis of titanium tetrabutoxidein the presence of hydrochloric aeid in NP-5 (lgepal CO-520)/ cyclohcxane
The synthesis and characterization of a new series of liquid crystalline polymers, poly(dicycloalkyl vinylterephthalate)s, are reported. The basic building bloc