查询词典 poly

Methods: The olfactory nerve layer and glomerular layer was isolated from the olfactory bulb of three-day old rats, Enzyme digestion method was used to isolate cells and the cells were purified by differential adhesion method. Freshly isolated OECs were plated onto poly-L-lysine-coated tissue culture and then incubated for 2 days. The purity of OECs was identified by immunocytochemistry of NGFRp75 and S100 and Hoechst33342 counterstain method.

从新生SD大鼠(3d)嗅球中迅速分离嗅神经层和嗅颗粒层，采用酶消化法分离细胞，差速贴壁法纯化细胞，接种于多聚赖氨酸包被的培养板内培养2d，采用NGFR p75和S100蛋白双标免疫组化、以Hoechst33342复染鉴定OECs的纯度。

This paper investigates the conditions of immobilization of chitosan adopting sodium alginate,poly and glutin as carriers,and farther uses the immobilized chitosan to adsorb the Cuand Crin water.

采用海藻酸钠、聚乙烯醇、明胶作为载体，对壳聚糖的固定化条件进行了研究，并以制成的固定化壳聚糖吸附水中Cu2+和Cr6+。

Dithioesters, cumyl dithiobenzoate and poly end-capped with dithioester underwent thermal decomposition at 120℃.

RAFT阻聚动力学是近几年研究的一个热门课题，主要存在两种截然不同的观点：中间态自由基的交叉终止理论和中间态自由基的慢裂解理论。

In spite of this, the preparation of thiol-end functionalized PMMA was achieved by introducing a short block of polystyrene after the RAFT polymerization of MMA.Third, RAFT technique was applied to design and synthesize some well-defined poymers. Five monomers, lauryl methacrylate,(N,N-dimethylamino)ethyl methacrylate, poly methyl ether methacrylate, 4-(4\'-cyanobiphenyl-4-yloxy) butyl methacrylate and 2-ethyl methacrylate were chosen to RAFT homopolymerization or copolymerizations mediated by cumyl dithiobenzoate.

RAFT方法在具有特定结构聚合物的设计与合成上的应用，在机理研究的基础上，本论文选择五种不同结构的甲基丙烯酸酯类单体：lauryl methacrylate，(N，N-dimethylamino)ethyl methacrylate，polymethyl ether methacrylate，4-(4'-cyanobiphenyl-4-yloxy)butyl methacrylate和2-ethyl methacrylate，用CDB调控RAFT聚合的方法设计合成了一些特定结构的聚合物，详细而深入地研究了它们的均聚、共聚动力学，发现了双硫酯并非在聚合反应初期就全部转化，而是随着反应进行逐步消耗，这与理想的活性聚合体系有很大差别。

Antonio's latest project is this 9-inch long, octagonal hooked-breech barrel, poly-groove rifled carbine that is highly decorated with an elaborated damascened panel of engraved gold work depicting panoplies-of-arms, crossed canons and flags, classical motifs of Grecian-styled urns ushering forth clouds of incense and Masonic symbols of flaming orbs.

安东尼奥马刺队的最新项目，这是9英寸长，八角形钩-膛枪管，聚槽螺纹卡宾枪是高度装饰一阐述damascened小组刻黄金工作描绘panoplies --武器，越过大炮和国旗，古典图案的希腊式回执编号迎来了云香和共济会的象征，燃烧

ABSTRACT Poly (γ-glutamic acid) is an unusual anionic polypeptide that is made of Dand L-glutamic acid units connected by amide ...

聚谷氨酸是一种阴离子聚肽，由D-和L-谷氨酸单体通过α-NH〓和γ-COOH之间的酰胺键连接而成。

High relative molecular mass poly was synthesized by direct polycondensation of succinic acid and 1,4-butanediol in decalin solution at 140～200 ℃ for 12～14 h.

以丁二酸和丁二醇为原料，十氢萘为溶剂，在140~200℃反应12~14 h，进行直接聚合，合成了高相对分子质量聚丁二酸丁二醇酯。

An innovative process for the production of high molecular weight poly(L-lactic acid) was presented, featuring solid-state polycondensation of L-lactic acid in a closed system with a dehydrant to remove water selectively.

研究在真空密闭、存在脱水剂的条件下聚乳酸固相缩聚工艺的可行性，得到了分子量达25万的聚乳酸；实验研究了催化剂浓度，预聚体粒度和反应时间对缩聚过程的影响，表明降解副反应仍然是控制聚乳酸最终分子量的重要因素。

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。

A high proportion of 1,3- dihydroxy units were also formed in the acid-catalyzed hydrolysis of poly, however, hydrolysis of GIE generated only a 2,3-dihydroxy product.

有很大比例的1，3 -二羟基单位也形成酸催化水解聚，然而，旅游局水解生成只有2，3 -二羟基产品。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。