NETWORK CROWN ETHER POLYMERS WITH CENTRIC FUNCTIONAL GROUPS.Ⅱ.SYNTHESIS OF NETROWK CROWN ETHER POLYMER WITH PENDANT SULFIDE SIDE CHAIN AND ITS PLATINUM COMPLEX

Network crown ether polymer with pendant sulfide side chain in the network structure units has been synthesized via ring-opening copolymerization of β-ethylthioethyl glycidyl ether and diethylene glycol bisglycidyl ether.A kind of active catalyst suitable for this reaction was suggested.The title polymer was found to be a good ligand for platinous chloride,and the platinous complex could catalyze the hydrosilylation of ole fins with triethoxysilane efficiently.     

SYNTHESIS AND FLUORESCENCE STUDY OF St／DVB COPOLYMERS LABELLED WITH PYRENE GROUPS

Two kinds of St/DVB copolymer beeds containing(1-pyrenyl) formyl and (1-pyrenyl) methyl groups respectively have been synthesized by both functionalization and copolymerization.The fluorescence spectra of the swollen polymers synthesized are similar in shape to those of the corresponding model compounds,while the intensity ratio of excimer to monomer shows clear dependence on the contents of the pyrene groups.     

高效液相制备色谱分离抗氧剂1010加成反应副产物

用高效液相制备色谱法分离、提纯抗氧剂１０１０加成反应中产生的副产物。并用红外光谱等定性方法确定提纯物结构。     

Synthesis and Crystal Structure of （Et4N）2[Pd2（mp）2（mpH）2]

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ（Ｅｔ_４Ｎ）_２［Ｐｄ_２（ｍｐ）_２（ｍｐＨ）_２］ＳｈｉＪｉ－Ｃｈｅｎｇ；ＨｕａｎｇＸｉａｏ－Ｙｉｎｇ；ＷｅｎＴｉｎｇ－Ｂｉｎ；ＤｅｎｇＹｕ－Ｈｅｎｇ；ＣｈｅｎｇＣｈａｎｇ－Ｎｅｎｇ；Ｌｉ?..     

微波诱导低级醇的等离子体化学反应

微波诱导低级醇的等离子体化学反应王真，洪品杰，张承聪，戴树珊（云南大学化学系，昆明，６５００９１）关键词微波，等离子体化学，低级醇等离子体能产生大量的活性自由基、亚稳态粒子和激发态离子，它所包含的能量传递过程和反应过程不仅与反应碰撞理论有关，而且还涉...     

单丁基磷酸酯的合成与表征

本文报道用三氯氧磷酯化、水解方法制备单丁基磷酸酯，用红外、核磁共振，质谱等方法对其结构进行了分析与表征。     

THE SYNTHESIS AND CHARACTERIZATION OF POLY—L—LACTIDE USED FOR THE INTERNAL FIXATION OF BONE FRACTURE

A high Mw of PLLA was synthesized,it intended to be used in the manufacture of bioabsorbable screw applied in bone fracture internal fixation.The optical reaction conditions have been discussed.