中文摘要：

从1969年Inoue发现ZnEt2-H2O催化CO2和环氧丙烷共聚以来,CO2共聚催化剂经过了30多年的发展,取得了显著的进步.比较重要的催化体系有Et2Zn-助剂;羧酸锌;双金属;卟啉铝;稀土;高位阻二亚胺和SalenMX等.SalenMX是2000年以来发展起来的新型催化体系,与卟啉铝和二亚胺体系一样,它也具有由金属和N/O等原子的螯合结构和较高的位阻.但与卟啉铝相比,它制备更加容易,共聚反应时间也大大缩短;与二亚胺相比,它在空气中稳定,对水分也不敏感.同时也保留了二亚胺体系催化效率高,产物分子量分布窄的特点.如果能在此基础上加以改进,将会发展成为一种较有前途的二氧化碳共聚工业催化剂.

英文摘要：

SalenMX has drawn much attention recently, because it is nonsensitive to moisture and effective for copolymerization of CO2 and epoxides. However,usually expensive organic metal compounds were used. A low cost procedure of SalenMX preparation is described that SalenAl （OPt） can be obtained by using aluminium iso- propoxide reacted with SalenH2 in tetrahydrofuran at room temperature overnight. The catalyst precursor Schiff-base SalenH2 （N, N＇-Bis（salicylidene）-1,2-phenylenediamine） was synthesized by refluxing 2 equiv salicylaldehyde and 1 equiv of 1,2-phenylendiamine in methnol for a period of time. SalenH2 and SalenAl（OPr） were characterized by FT-IR,mass Spectroscopy, UV-Vis and 1H-NMR. The copolymerization of carbon dioxide and cyclohexene oxide （CHO） was carried out at 80℃ for a certain period time using 50mg SalenAl（OPr） as catalyst. SalenAl（OPr） had been shown to be an effective catalyst for the copolymerization of CO2 and CHO along with a small quantity of byproduct cyclic carbonate. The addition of various cocatalysts, including DMAP, N-MeIm, DBU and Bu4NCl or Bu4 NBr salts can greatly enhance the rate of copolymerization. The copolymers were produced with 〉 95 % carbonate linkages and 〈 5 % cyclic carbonates. The highest catalytic efficiency is 190 g copolymer per g catalyst.