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- A vinyl compound is an organic compound that contains a vinyl group. 乙烯化合物是有乙烯基团的有机化合物。
- Keywords Styrene-divinylbenzene copolymers;Pendant vinyl group;Post-crosslinking. 苯乙烯-二乙烯基苯共聚物;悬挂双键;后交联;
- Due to the hindered nature of the vinyl group in (+)- 27 3 days were required to reduce the ozonide; fortunately, the reaction progress can be monitored easily by TLC. 同酯(+)-27手;下一组黑胶转为经醛啉臭氧、用人的臭氧减少与甲基或产后大出血3、治疗后;在指定四氢呋喃对异构;醛类(+)-29年联合摄制产量65%25的两步.
- The microstructure dependence of molecular motion and the internal motion of vinyl group in 1,2-polybutadiens have been studied by TI and NOE. 较系统地研究了1,2-聚丁二烯的分子运动与化学结构、序列结构和大分子链节构成的关系,分析了乙烯基的内旋转运动。
- The vinyl group in the vinyl ester is a typical ABX system in NMR,other spectral characteristics are the same as in maleopimaric acid. 马来海松酸乙烯酯上的乙烯基在核磁共振谱图中呈现为很好的ABX系统，其他光谱特征与马来海松酸相同。
- It has been shown by calculation that the dominant factor causing the difference in nT1 of CH and CH2 in vinyl group is its swinv in a plane perpendicular to the chain backbone. 乙烯基叔碳的nT_1值大于端碳,经计算表明,引起乙烯基叔、端碳的nT_1值不相等的主要因素是乙烯基在垂直于主链的平面上的摆动。
- Anionic polymerizable urethane acrylate emulsifier( APUA) was synthesized by having PPG in the middle of molecular, introducing a reactive vinyl group and a carboxylic acid group on the end sides. 将聚醚作为亲油链，一端接甲基丙烯酸羟乙酯作为可聚合部分，另一端接二羟甲基丙烯酸作亲水基。
- The Schiffbase liquid crystal compound with terminal vinyl group, 4-allyloxy phenylmethylene (-4'-butoxyl)aniline was synthesized by the substitution, reduction and addition reaction. 摘要通过取代、还原、加成等反应，合成了一种带端烯基的席夫碱液晶化合物4-烯丙氧基苯亚甲基（-4'-丁氧基）苯胺。
- Axial delivery of the vinyl group and subsequent axial alkylation with methyl iodide are the direct result of the stereoelectronic preference for axial delivery and enolate-like alkylations. 轴交货的乙烯烷基甲基轴集团和随后的直接结果是碘的立体偏爱轴流送烯醇式烷基.
- Anionic polymerizable urethane acrylate emulsifier (APUA) was synthesized by having PPG in the middle of molecular,introducing a reactive vinyl group and a carboxylic acid group on the end sides. 将聚醚作为亲油链,一端接甲基丙烯酸羟乙酯作为可聚合部分,另一端接二羟甲基丙烯酸作亲水基。
- The silicone-acrylate emulsion and architectural coating were prepared with acrylate and silicone intermediate which was synthesized by vinyl group silicone monomer and cyclo-form silicone monomer. 研究了有机硅加入形式、有机硅中间体分子量、有机硅加入量等因素对硅丙乳液及其涂料性能的影响,并与相应的纯丙体系进行比较。
- VSI Methylsilicone Rubber with Vinyl Group 甲基乙烯基硅橡胶
- In the microgel core of (PS)n, there were a number of active initiating sites for ATRP, 1-bromoethylbenzene groups, which were from the addition of linear PS macrointiators to vinyl groups of DVB. 在核内，仍存在ATRP活性引发点1-溴乙基苯基基团，它们是由聚苯乙烯链加成到DVB单元的乙烯基基团后得到，且其数目理论上等于PS的臂数。
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- This type of vinyl is a poor substitute for leather. 这种乙烯基材料代替皮革十分勉强。
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- The group was made up of doctors. 这个团体是由医生组成的。
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
- I come upon a group of children play in the street. 我遇到一群孩子在街上玩耍。
