单体

The anti-ischemia effect in myocardium of Rhizoma Corydalis is related to the direct protective effects on cardiomyocytes of its components, tetrahydropalmatine, dehydrocorydaline, berberine and palmatine, amomg which tetrahydropalmatine and dehydrocorydaline are the most important, the former with high safety and low efficacy, while the latter with low safety and high efficacy. And the direct protective effects on cardiomyocytes of these four components may be attained through mechanisms other than anti-peroxidation.

延胡索抗心肌缺血损伤的作用与其成分延胡索乙素、脱氢紫堇碱、黄连素和巴马汀对心肌细胞的直接保护能力有关；其中，延胡索乙素和脱氢紫堇碱的作用最为重要，前者安全性高，但效能较低，后者安全性低，而效能较高；而这4个单体的保护作用可能是通过抗氧化损伤之外的机制达到的。

Result: At most up to 500 mg·L-1, tetrahydropalmatine showed no sinificant effect on the cell viability; while dehydrocorydaline, berberine and palmatine significantly decreased the cell viability, exceeding 6.3, 0.6 and 6.3 mg·L-1, respectively（ P .05 or 0.01）. Tetrahydropalmatine, dehydrocorydaline, berberine and palmatine significantly inhibited LDH leakage induced by anoxia-reoxia injury, at concentrations of 50-100, 1.25-5, 4 and 30 mg·L-1, respectively（ P .05 or 0.01）. None of the four compounds showed significant effect on the hydrogen peroxide injury.

结果：多至500 mg·L-1的延胡索乙素对细胞活力无任何影响，脱氢紫堇碱、黄连素、巴马汀分别在质量浓度大于6.3， 0.6，6.3 mg·L-1时，显著降低细胞活力（ P 。05或0.01）；延胡索乙素、脱氢紫堇碱、黄连素和巴马汀分别在质量浓度为50～100， 1.25～5， 4，30 mg·L-1时，显著抑制缺氧复氧导致的LDH漏出（ P 。05或0.01）；4种单体对过氧化氢损伤无显著的作用。

Results also show that micelles formed by nonylphenoxypolyethoxyethanol do not make the oligomer of BPR depolymerize.

聚氧乙烯型非离子表面活性剂胶束不会使BPR低聚体解聚，相反，在某种程度上，它还有利于BPR单体的低聚化。

Finally heat the starch to 80℃dextrinize 2h,keep warm 0.5h,then cooled to 40℃,add 2.8%CAN initiator,7.5%MMA monomer,sealed and stir 3.3hours of the nitrogen atmosphere,using the screw rod center distance is 32mm,expects the tube diameter phi300mm major axis compared to L/D is 12.5 double screw rods extruding machines,controls the screw rod rotational speed 100rpm sample water content when 20%squeezes out,and the results indictated that the sample may bear 302℃within the high temperature,the water resistance is 14.7%,buried in the simple earth passes through about 180 day to be allowed to achieve the nearly 60%weightlessness rate, and can be basically completely degrades.

因此将淀粉80℃糊化2h，保温0.5h，40℃添加2.8%引发剂，7.5%MMA单体，通氮气密封搅拌反应3.3小时后的接枝产物，利用螺杆中心距为32mm，料筒直径f300mm长径比L/D为12.5的双螺杆挤出机，控制螺杆转速100rpm样品含水量20%时挤出，测定知道样品可以耐302℃以内的高温，耐水性为14.7%，在简单土埋的情况下，经过180天左右可以达到近60%的失重率，可以说基本上完全降解。

Co condensation type polyamides were prepared by using 1,2 dihydro 2 (4 aminophenyl) 4 [4 (4 aminophenoxyl) phenyl] phthalazin 1 one and 4,4′ diamino biphenyl ether or 4,4′ diamino biphenyl methane as the co diamine monomers and aromatic diacid as the co condensation monomer.

采用 1 ，2 -二氢-2 -( 4-氨基苯基)-4 -[4 -( 4-氨基苯氧基)-苯基 ]-二氮杂萘-1 -酮、4 ，4′-二氨基二苯醚、4 ，4′-二氨基二苯甲烷为共缩聚二胺单体与对苯二甲酸进行共缩聚反应，制备共缩聚型聚酰胺。

Chapter four. Two glucosamide-based trisiloxane Gemini surfactants which were connected with the short carbon chain dialcohol diglycidyl ether spacer were synthesized and their properties were determined. These compounds were structurally characterized by their 1H and 13C NMR spectra and elemental analysis.

界面性能通过K12表面张力仪测定，在临界聚集浓度CAC为1一3、10一5时可以显著地降低水的表面张力值至约21 mN/m，比连接基为低碳链二缩水甘油醚的略低，其CAC值随着乙氧基数的增加而增加，其CAC值比相应的单体低1~2个数量级，而且有两个CAC值。

Both polymer and non-polymer forming starter were used in the yogurt.Cultured broth was digested for 16h at pH 7.5, 30 with Pronase, precipitated with 95% ethanol, centrifugation (12000*g, 20min)and dialyzation, thus get the crude EPS, HPLC was choosed to determine the EPS composition in the cultured broth.

将产粘菌株与普通酸奶生产菌结合用于制作酸奶，用链霉蛋白酶在pH 7.5，30℃条件下消化16h，再用95％乙醇沉淀、离心、透析获得粗多糖，HPLC法测定发酵液中的糖组成及EPS的单体组成。

A white-threadlike solid copolymer has been prepared from maleic anhydride, acrylamide and methyl acrylate initiated by dibenzoyl peroxide in an aqueous solution. The scale inhibiting efficiency of the copolymer to simulated water containing CaCO3 is studied.

以马来酸酐、丙烯酰胺、丙烯酸甲酯为单体，水为溶剂，过氧化二苯甲酰为引发剂合成一种白色丝状固体共聚物阻垢剂。

Two monomers,bispmpargyl ether of bisphenol-Aand 4,4'-biphenyl dibenzyl azide were synthesized and characterized with FT-IR,1H-NMR and elementary analysis.

合成了两种单体双酚A二炔丙基醚与4，4′-联苯二苄叠氮，研究了一种新的低温聚合体系——双酚A二炔丙基醚与4，4′-联苯二苄叠氮在烘箱中的本体聚合行为。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新