EHP引发AM/DMMC反相微乳液聚合的研究

以油酸失水山梨醇酯Span80和壬基酚聚氧乙烯醚OP-10为乳化剂，白油为连续介质，过氧化二碳酸（2-乙基已酯）（EHP）为引发剂，进行丙烯酰胺/（2-甲基丙烯酰氧乙基）三甲基氯化铵（AM/DMMC）反相微乳液共聚合反应。研究了ωM=0.25-0.50范围内单体总浓度M]、引发剂浓度I]、乳化剂浓度E]对聚合速率Rp和共聚物分子量M^-V的影响，得到Rp∝M]^2.47I]^0.76E]^0.19,M^-v∝M]^2.05I]^-0.37E]^-0.47。测定了AM/DMMC反相微乳液共聚合中单体的竞聚率，得到rAM=0.44,rDMMC=1.31。

Study on AM/DMMC Inverse Microemulsion Polymerization Initiated by EHP

Object Identification basis for the proper employment of Abies nephrolepis (Trautv ) Maxim were provided by the histological anatomy study of the leaf and the young stem of A nephrolepis Methods The intra surface of the leaves' epidermis and the dried wood of the twig were observed by the scanning electron microscope; the cross sections of the leaf and the young stem and cross radial tangent sections of the wood were observed by the optical microscope Results The stoma was sunk under the four subsidiary cells which surround around the stoma The hypodermis was only distributed under the middle parts of the uppper and lower epidermis Casparian thickening was not found on the endodermis There were two mesial resin canals and two bundles, and there were not normal resin canals in the wood The xylem ray was completely composed with parenchyma cells, whose end walls and level walls have nodal thickening The cross field pitting was pinoid Conclusion The above results can be used as basis for the identification of the herbal medicine A nephrolepis