vinyl group

英 [ˈvaɪnl ɡruːp]

美 [ˈvaɪnl ɡruːp]

网络  乙烯基; 万恩佑; 至乙烯基组; 乙烯基团

英英释义

noun

• a univalent chemical radical derived from ethylene
  Synonym:vinylvinyl radical

双语例句

• The electrophilic reaction of methyl pyropheophorbide-a ( MPP-a) demonstrates that the electrophilic addition reaction and the electrophilic substitution reaction occur on the vinyl group at 3-position and 20-meso-position, respectively.
  焦脱镁叶绿酸a甲酯与溴素的亲电反应表明：在3位乙烯基上发生亲电加成反应，而与20位的meso氢则发生亲电取代反应。
• While two sorts of ferrocene units appeared in the cationic copolymer: one had a pendent vinyl group which had not taken part in the polymerization, and the other had a cross-linking structure with two alkenyl groups.
  而阳离子共聚物的二茂铁单元有两种不同结构：一个烯基未参与聚合反应的悬挂结构（38.9%）和两个烯基分别成链的交联结构（61.1%）。
• MQ resins containing different vinyl group content were synthesized.
  合成了不同乙烯基含量的MQ树脂；
• The effects of the type and content of vinyl monomer containing polar group on the flame retardance of PP were studied.
  着重探讨了含极性基团的乙烯基单体种类及用量等因素对PP阻燃性的影响。
• 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。
• When it was substituted by other heterocyclic groups, the anesthetic activity decreased. However, some substituted vinyl groups were effective substitutes for 1-β-phenyl group.
  结果表明1-β-苯基对麻醉活性起重要作用，被杂环基团取代活性下降，但某些取代乙烯基是可替代该苯基产生强效活性的一个有效结构。
• Acrylic resin containing N, N-dimethyl amino group and vinyl group applicable for UV-curable and cathodic electrophoretic paint was synthesized via radical polymerization of acrylic monomers followed by modification with methacrylic oxyethyl isocyanate ( MOI).
  通过自由基共聚合得到丙烯酸树脂，然后用甲基丙烯酸异氰酸乙酯（MOI）对其改性，合成了既带有N，N二甲胺基，又带有乙烯基的紫外光固化阴极电泳漆基体树脂。
• In this paper, we synthesize a vinyl monomer-Diacetone Acrylamide ( DAAM) which can introduce keto group into the acrylic polymer.
  本文合成了一种含有酮羰基的乙烯基单体&双丙酮丙烯酰胺（DAAM）。
• The derivatives of 3-N-substituted and other 3-substituted methyl pyropheophorbide-α were synthesized by modification of vinyl group at 3-position of 2.The structures of all new compounds were characterized by (~ 1H NMR), IR, MS and elemental analysis.
  通过对2的3-乙烯基的修饰，获得了3-N-取代类衍生物。新化合物的结构均经1HNMR，IR，MS及元素分析确证。
• Glycidyl methacrylate was a vinyl monomer having epoxy group. The polymer poly ( glycidyl methacrylate) containing epoxy group can be prepared with glycidyl methacrylate by homopolymerization or copolymerization.
  甲基丙烯酸缩水甘油酯（GMA）是一种含环氧基的烯类单体，通过均聚合或者共聚合可以制备带有环氧基团的聚合物大分子。