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- vinyl addition polymerization 烯类加成聚合
- In addition polymerization, unsaturated or cyclic molecules add to each other without elimination of any portion of the monomer molecule. The empirical formula of the polymer is then, of course, the same as that of the monomer. 在加聚反应中,不饱和的或环状的分子之间彼此加成,没有消除任何分子,这样,聚合物的实验式就当然与单体的实验式相同。
- It is the reverse of the propagation step in addition polymerization. 这一过程是加聚反应历程中链增长步序的逆过程。
- By using real time FTIR, the additive polymerization process of hydrogen silicone with vinyl silicone rubber was monitored in-situ. 摘要用实时傅里叶变换红外光谱仪(FTIR)对乙烯基硅橡胶和含氢硅油的加成聚合过程进行了表征,得到了基团浓度消耗比随反应时间变化的曲线。
- Regular vinyl addition polymers may be obtained from particularly strained endocyclic double bonds. 由带特殊张力的桥环双键可以得到规整的乙烯类加成聚合物。
- Two types of polymerization are recognized: (1)condensation polymerization and (2) addition polymerization. 人们已知有两种聚合方式:(1)缩聚,(2)加聚。
- Depending upon reaction conditions, the product may be a polyketone formed b y addition polymerization of the ketene double bond. 随着反应条件的不同,产物可以是由烯酮的双键加成聚合得到的聚酮。
- Waterborne polyurethane (WPU) emulsions were synthesized by step-growth addition polymerization from a polyether polylol, toluene diisocyanate, dimethylolpropionic acid. 摘要以甲苯二异氰酸酯、聚醚二元醇、二经甲基丙酸为主要原料通过逐步加成聚合合成水性聚氨酯(WPU)乳液。
- In addition polymerization, the monomer need have only one functional group - the presence of two or more functional groups usually leads to the production of cross-linked addition polymers. 而在加聚反应中,每个单体只要有一个官能团即可,如果一个单体有两个或更多的官能团,通常将导致交联的加聚物的形成。
- It contains the requisite double bond for the addition polymerization which is involved in the cross-linking of the polyester resins and could be used as active diluent and cross-linking agent for UPR. 可利用不饱和聚酯、收缩剂和分散稳定剂适当的配合,组成低收缩型不饱和聚酯:这种组成物可长时间保存而没有低收缩剂漂浮而分层的现象。
- Hydrogen transfer addition polymerization 氢转移加成聚合
- Use: Polymerization initiator for vinyl compounds. 用途:乙烯基化合物的聚合引发剂。
- mechanism of addition polymerization 加成聚合机理
- stepwise addition polymerization 逐步加成聚合
- 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。
- She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。
- Polymer surfactants of poly(vinyl alcohol)(PVA)are used as emulsifier in vinyl monomer emulsion polymerization and dispersent in VC suspension polymerization. 聚乙烯醇(PVA)系高分子表面活性剂,可用作乙烯基单体乳液均聚或共聚的乳化剂和氯乙烯(VC)悬浮聚合的分散稳定剂。
- By mechanical mixing of ABS and HPVC(high polymerization degree poly(vinyl chloride))at high temperature, polymer alloys with good overall properties are prepared. 将ABS和HPVC高温机械共混,制备了综合性能好的聚合物合金。
- The little girl is not very clever at addition. 这个小女孩不太善于做加法。
- Ann will be a very useful addition to our team. 安来到我们队给我们增加了一员干将。