以2-溴乙酸、壳聚糖、2-硫代四氢咪唑啉酮为原料,合成了不同接枝率的壳聚糖g--N-羧甲基-2-硫代-4,5-2H咪唑啉酮(CTS-g-CSIDZ),并对其理化性质进行了考察。用配合滴定法测定了该聚合物对Cd2+、CrO42-、Fe3+、Cu2+、Pb2+等重金属离子的吸...以2-溴乙酸、壳聚糖、2-硫代四氢咪唑啉酮为原料,合成了不同接枝率的壳聚糖g--N-羧甲基-2-硫代-4,5-2H咪唑啉酮(CTS-g-CSIDZ),并对其理化性质进行了考察。用配合滴定法测定了该聚合物对Cd2+、CrO42-、Fe3+、Cu2+、Pb2+等重金属离子的吸附作用;进行了聚合物的悬菌定量实验,测定了接枝聚合物对一系列细菌的抑菌能力;采用失重法研究了合成的聚合物在1 mol/L HC l溶液中对N80钢片腐蚀的抑制作用。结果表明,部分接枝的CSIDZ比小分子化合物具有更高的对测试的多数金属离子吸附作用的热稳定性;接枝CSIDZ具有较强的抑菌效果,最小抑菌浓度为5.10 g/L;接枝CSIDZ比小分子缓蚀剂具有更高的热稳定性,在90℃时对N80钢片的缓蚀效率仍然可以达到71.1%,且用量仅为小分子化合物CSIDZ的1/2。展开更多
The halogen-terminated polymers （PS—X） were obtained by living free radical polymerization. Through the end-group transformation action of AgClO4, poly（styrene-b-2-methyl-2-oxazoline） block copolymer [P（s-b-Me-...The halogen-terminated polymers （PS—X） were obtained by living free radical polymerization. Through the end-group transformation action of AgClO4, poly（styrene-b-2-methyl-2-oxazoline） block copolymer [P（s-b-Me-OXZ）] was synthesized by transforming the living free radical polymerization into ring-opening polymerization of 2-methyl-2-oxazoline.The obtained copolymers were characterized by SEC, IR and 1H NMR. The suitable polymerization conditions for block copolymer synthesis were studied.展开更多
文摘以2-溴乙酸、壳聚糖、2-硫代四氢咪唑啉酮为原料,合成了不同接枝率的壳聚糖g--N-羧甲基-2-硫代-4,5-2H咪唑啉酮(CTS-g-CSIDZ),并对其理化性质进行了考察。用配合滴定法测定了该聚合物对Cd2+、CrO42-、Fe3+、Cu2+、Pb2+等重金属离子的吸附作用;进行了聚合物的悬菌定量实验,测定了接枝聚合物对一系列细菌的抑菌能力;采用失重法研究了合成的聚合物在1 mol/L HC l溶液中对N80钢片腐蚀的抑制作用。结果表明,部分接枝的CSIDZ比小分子化合物具有更高的对测试的多数金属离子吸附作用的热稳定性;接枝CSIDZ具有较强的抑菌效果,最小抑菌浓度为5.10 g/L;接枝CSIDZ比小分子缓蚀剂具有更高的热稳定性,在90℃时对N80钢片的缓蚀效率仍然可以达到71.1%,且用量仅为小分子化合物CSIDZ的1/2。
文摘The halogen-terminated polymers （PS—X） were obtained by living free radical polymerization. Through the end-group transformation action of AgClO4, poly（styrene-b-2-methyl-2-oxazoline） block copolymer [P（s-b-Me-OXZ）] was synthesized by transforming the living free radical polymerization into ring-opening polymerization of 2-methyl-2-oxazoline.The obtained copolymers were characterized by SEC, IR and 1H NMR. The suitable polymerization conditions for block copolymer synthesis were studied.
