外丙

非手性席夫碱-异丙氧基铝引发外消旋丙交酯的立构选择性聚合

Stereoselective Polymerization of rac-Lactide Initiated by Achiral Schiff-base Isopropoxide Aluminum Complex

以非手性的席夫碱-异丙氧基铝（Ⅱ）引发外消旋丙交酯（rac-LA）的立构选择性聚合。

An achiral Schiff-base isopropoxide aluminum complex (ⅱ) was used for the stereoselective ring-opening polymerization of rac-lactide .

综述了目前国内外1,3-丙二醇的工业化生产能力，市场状况以及化学法和生物法生产的研究进展。

In this article , the production capability and market information of 1,3-PD are reviewed , as well as the recent development of chemical and biological production processes .

在复合敏感膜外施加硅丙树脂保护层，可明显提高传感器的稳定性。

In addition , it was found that applying a protective layer of silicone-acrylic resin on the composite sensor greatly improved its stability under humid environment .

结论：卡马西平（除婴儿痉挛外）和丙戊酸宜作为癫痫患者的首选药物，血清浓度分别宜控制在6～8μg/ml和60～90μg/ml。

Conclusion : carbamazepine ( except for infantile spasms ) and valproic acid should be the first line drugs in the treatment of patients with epilepsy , the best serum therapeutic concentrations are 6 - 8 μ g / ml and 60 - 90 μ g / ml respectively .