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- The conclusion of this experiment income is that the main chain of copolyimides with long alkyl side chain, linear, symmetric and rigid core structures are favorable for generating high pretilt angel. 本实验所得之结论为:线性的、对称的及刚硬的聚醯亚胺主链结构在导入长烷基侧链后会有较稳定的配向性,且长烷基侧链愈长也较有机会得到高预倾角。
- A modified method of free radical alkylation has been using for synthesizing of quinone derivatives with an alkyl side chain variation. 应用经过改进的自由基烷基化新方法,合成了一系列的具有长侧链结构的苯醌类化合物。
- Conclusion: The title compounds with cyclopropyl and alky substituents have antifungal activities,and the antifungal activity decreases as the alkyl side chains getting longer. 结论:引入环丙基和烷基侧链的目标化合物都具有抗真菌活性,随着烷基侧链增长,目标化合物的活性降低。
- Keywords Comblike polymers;Alkyl side chains;Conformational transition;FT-IR spectroscopy; 梳状高分子;烷基链;结构转变;红外光谱;
- SIDE CHAIN DEGRADATION OF BS BY MYCOBACTERIUM SP. 分支杆菌降解大豆甾醇侧链的发酵研究。
- Research and Development of Side Chain. 侧链液晶高分子研究进展。
- By the positron annihilation life spectrum (PALS) technique, the free volumes of chitosan and its N alkyl derivatives membranes were measured. 用正电子湮灭寿命谱(PALS)法,研究了N-烷基化壳聚糖膜的自由体积。
- High oil absorption resins (OAR) of crosslinked poly(n alkyl methacrylates were synthesised by means of suspension polymerization. 以甲基丙烯酸酯为单体,双烯化合物为交联剂,采用悬浮聚合方法合成高吸油性树脂。
- Some new polymeric colorants,polyfluro alkyl esters of polymeric phosphonitrilic acid with azo dyes in the side chain,were prepared in the presence of pyridine. 首次将偶氮染料和聚合膦腈酸多氟烷基取代酯相结合,合成了一类具有阻燃、疏水憎油等特性的功能聚合物。
- Alkyl side chains 烷基链
- Morphology studies showed that the curve of N,N-dialkyl chitosan was depended on the length of side chain,and the backbone molecular weight influenced the size of corresponding vesicle. 合成了不同主链相对分子质量的N,N-双辛烷基壳聚糖,N,N-双癸烷基壳聚糖及N,N-双十二烷基壳聚糖,并制备了相应的自组装泡囊,比较研究了侧链长度和主链相对分子质量对载药泡囊药物释放行为的影响。
- The results indicated that the main reactions of cumene cracking were dealkylation and protolytic cracking of alkyl side chain.Benzene was mainly formed by the dealkylation reaction. 结果表明,异丙苯裂化中的主要反应为脱烷基反应和侧链质子化裂化反应,苯主要来自异丙苯的脱烷基反应;
- The side chains of o xylene were chlorinated in presence of the catalyst N,N dimethylformamide . 以邻二甲苯为原料,在催化剂二甲基甲酰胺存在下进行侧链氯化反应。
- A side chain liquid crystalline polysiloxane with p( allyloxy) benzoxy p cyanophenyl as a monomer was synthesized. 研究以对-烯丙氧基苯甲酸对-氰基苯酚酯为单体的聚硅氧烷侧链液晶高分子的合成方法。
- N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization. 以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基化、二芳胺的环化、N-烷基化、硫代化反应合成了N-丁基-2-乙氧基硫代吖啶酮。
- Objective:To study the antifungal activity of triazole alcohols by introduction of cyclopropyl as side chain. 目的:研究具有环丙基结构的三唑醇类化合物的抗真菌活性。
- There are two steps in synthesis of ceftazidine: synthesis of side chain ester and synthesis of bulk actives. 头孢他啶的合成分为侧链酯的合成和原料药的合成两部分。
- The population of trans-trans conformers for the i - and s-sequences increased and the side chain preferred to its e... 对丙酮样品的退火实验表明,在退火过程中能够发生间规链段的自聚集现象。
- It pointed out that the production of cynnematin's side chain intermediates has high risk and high profit. 指出头孢菌素侧链中间体的生产具有高风险、高回报,国内企业要追求高质量、低成本、注重技术创新与市场开发,开辟国际市场。
- Keywords microwave irradiation;N alkyl o nitroaniline;building block;synthesis; 烷基化邻硝基苯胺;微波辐射;构建单元;合成;
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries