中文摘要：

通过添加对映体拆分剂，合成了4种含膦手性的丙炔胺磷酸酯单体[HC=CCH2NH（P=O）R1R2]．单体1，R1=OPh，R2=NC4H7COOCH3；单体2，R1=OPh，R2=NC4H7COOCH2CH3；单体3，RI=OPh，R2=NC4H7-COOC（CH3）3；单体4，R1=Ph，R2=NC4H7COOC（CH3）3]^1H—NMR和^31P-NMR表征可知对映体（单体1）不能被拆分剂拆分，而单体2、单体3、单体4通过拆分剂可以制得单一手性的磷化合物．以（nbd）Rh’[η^6-C6H5B-（C6H5）3]为催化剂，以三氯甲烷为溶剂成功得到聚合物分子量范围在0．4×10^-4～0．7×10^-4，分子量分布在1．26～1．98范围的3种含手性膦侧基的丙炔胺类聚合物．比旋光度（[α]D）、圆二色谱（CD）对聚合物的不同侧基及温度对光学活性的影响表明，聚合物具有良好的光学活性且能够形成单一方向的螺旋构象，说明膦手性在构建螺旋聚合物具有重要作用．

英文摘要：

Phosphorus has a structure with five coordination,this compound is easy to form enantiomers and can hardly be separated. In this paper, four propargylphosphonamide monomers [ HCCCH2 NH （P--O）- R, R2. Monomer 1 ：R1 = OPh, R2 = NC4H7 COOCH3 ;monomer 2：R1 = OPh, R2 = NC4 H7 COOCH： CH3 ;monomer 3 ： R1 = OPh, R2 = NC4H7COOC （ CH3 ） 3 and monomer 4 ： R1 = Ph, Ra = NC4H7 COOC （ CH3 ） 3 ] were designed and synthesized. ^1H-NMR and ^31P-NMR show that monomer 1 can only form enantiomer and cannot be separated. But monomer 2, monomer 3 and monomer 4 can be separated by resolving agent to form P-chiral diastereomeric monomers. Polymerization was carried out with （nbd） Rh ^＋ [ η^6-C6 H5 B - - （ C6 H5 ） 3 ] as catalyst in CHC13 giving four polymers with moderate molecular weights （Mn） （0.4 × 10^4 - 0.7 × 10^4 ） and Mw/Mn （1.26- 1.98） by GPC, two factors （the pendent group and temperature） were observed to affect the helix structure of polymers. The optical activity and secondary structure of the polymers were characterized by specific rotations （ [ a] D ） , circular dichroism （CD） spectra and UV-Vis. It shows that the polymers have good optical activity and can form a single direction of the helical conformation. It was found that the secondary structure stability of the copolymer is better than homopolymer＇ s in different mixed solvents, when the methanol quantity was up to 50% , CD spectra of poly3 and poly4 change largely,which shows methanol broke the hydrogen bond between phosphorus-oxygen bond and nitrogen-hydrogen bond.