In order to construct the zwitterionic structure of phosphorylcholine onto the surface of biomaterials, five novel phospholanes containing hydroxyl group were synthesized from the corresponding diol and 2-chloro-2-oxo...In order to construct the zwitterionic structure of phosphorylcholine onto the surface of biomaterials, five novel phospholanes containing hydroxyl group were synthesized from the corresponding diol and 2-chloro-2-oxo-1,3,2-dioxaphospholane in the presence of THF. Then, five novel phosphorylcholines containing hydroxyl group were prepared by the corresponding phospholane and anhydrous trimethylamine in the presence of acetonitrile. Their structures were characterized by FTIR, 1H NMR and elemental analysis.展开更多
According to the hypothesis of "Maintaining normal configuration", the polymers with the structure of sulfo-ammonium inner salt would be nonthrombogenic. In this paper, a series of polymers of 3-N,N-dimethyl...According to the hypothesis of "Maintaining normal configuration", the polymers with the structure of sulfo-ammonium inner salt would be nonthrombogenic. In this paper, a series of polymers of 3-N,N-dimethyl-3-N-methacryloyloxyethyl ammonium propanesulfonate(DMAPS) and its copolymers with polyethyleneglycol monomethylether methacrylate were prepared by using different concentrations of monomers and crosslinking agent. Their blood compatibilities were evaluated by platelet adhesion method. The results show that PDMAPS is of excellent platelet adhesion resistance.展开更多
文摘In order to construct the zwitterionic structure of phosphorylcholine onto the surface of biomaterials, five novel phospholanes containing hydroxyl group were synthesized from the corresponding diol and 2-chloro-2-oxo-1,3,2-dioxaphospholane in the presence of THF. Then, five novel phosphorylcholines containing hydroxyl group were prepared by the corresponding phospholane and anhydrous trimethylamine in the presence of acetonitrile. Their structures were characterized by FTIR, 1H NMR and elemental analysis.
文摘According to the hypothesis of "Maintaining normal configuration", the polymers with the structure of sulfo-ammonium inner salt would be nonthrombogenic. In this paper, a series of polymers of 3-N,N-dimethyl-3-N-methacryloyloxyethyl ammonium propanesulfonate(DMAPS) and its copolymers with polyethyleneglycol monomethylether methacrylate were prepared by using different concentrations of monomers and crosslinking agent. Their blood compatibilities were evaluated by platelet adhesion method. The results show that PDMAPS is of excellent platelet adhesion resistance.
