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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。
In condensation polymerization, each monomer unit must have at least two functional groups. 在缩聚反应中,每个单体至少要有两个官能团；
DCPD type unsaturated polyester resin prepared by using semi condensation polymerization method is proposed. 本文用半缩聚法合成双环戊二烯型不饱和聚酯树脂。
Influence of the reaction conditions on the condensation polymerization at the presence of DBTL was discussed. 讨论了二月桂酸二丁基锡催化剂存在下反应条件对缩聚反应的影响。
Reactions capable of forming macromolecules by either addition or condensation polymerization must be functionally capable of proceeding indefinitely. 一个形成高分子化合物的反应,不管是通过加聚还是通过缩聚来进行的,都必须有许多官能团的参与才能完成。
There are two main methods to synthetizing PLA, ring-opening polymerization of lactide and condensation polymerization of lactic acid. 聚乳酸的合成主要有两种方法:丙交酯的开环聚合和乳酸直接缩聚。
Through the seeondary condensation polymerization and controlling the appropriate propnrtion of urea-formaidehyde,PH value and response humi... 在较强酸度、低温度条件下实现了树脂的合成,减少了能源消耗。
Using lactic acid as monomer,L-lactide was synthesized by condensation polymerization and consequent depolymerization steps. 以乳酸为单体,采用先缩聚后解聚的方法制备了L-丙交酯。
Cardanol-aldehyde ferric polymers were prepared by condensation polymerization with formaldehyde, n-butyl aldehyde, furtural and iron trichloride. 摘要以溶液缩聚法，由腰果酚分别与甲醛、正丁醛、糠醛和三氯化铁制备了腰果酚醛铁聚合物。
In this paper,condensation polymerization process of PCF resins were traced by means of GPC,and its condensation polymerization had been investigated. 利用GPC（凝胶色谱）仪跟踪了PCF（苯酚焦油酚甲醛共缩聚）树脂的缩聚反应过程，考察了PCF树脂的缩聚机理。
Microcapsules of pendimethalin with a urea-formaldehyde resin wall were prepared by anin-situ condensation polymerization reaction in aqueous medium. 研究了分散、乳化条件及成囊工艺对以脲醛树脂为壁材采用原位聚合法制备二甲戊灵微胶囊状态的影响。
The esterfication is completed by ester exchange and melt condensation polymerization at high temperature with distillation of the dispersion medium. 在高温下通过酯交换脱出乙二醇分散介质然后用熔融缩聚法完成酯化反应。
Cardanol-aldehyde ferric polymers were prepared by condensation polymerization with formaldehyde, n-butyl aldehyde, furfural and iron trichloride. 以溶液缩聚法,由腰果酚分别与甲醛、正丁醛、糠醛和三氯化铁制备了腰果酚醛铁聚合物。
A polymer-forming reaction involving elimination of a small molecule such as water or alcohol between monomer units is described as condensation polymerization. 一个涉及在两个单体单元之间消除一个小分子(例如水或醇)形成聚合物的反应被称为缩聚反应。
They are usually prepared from equivalent amounts of glycols and dibasic carboxylic acids, which undergo condensation polymerization to produce the polyester and water. 通常由等当量的甘醇和二元羧酸制备，它们经过聚合作用而生成聚酯和水。
A waterborne polyester resin has been developed by condensation polymerization of polycarboxyl acids and polyols, which neutralized with organic amines. 采用多官能有机羧酸与多官能醇进行缩聚,并加入有机胺中和的方法,制备了水性聚酯树脂。
Transparent polyester varnish is prepared through alcoholysis,esterification,condensation polymerization and et al with waste polyester drink bottles as materials. 叙述了以废聚酯饮料瓶为原料,经过醇解、酯化以及缩聚等工艺过程,制成透明聚酯清漆。
The results show that coal tar pitch and PMB can be used to synthesize COPNA resin, the reaction mechanism of which is a positive ion-typed condensation polymerization catalyzed by acid. 研究表明煤沥青能与PMB合成COPNA树脂，其反应机理为酸催化下的阳离子型缩聚反应；
A new type of phenolic resin adhesive for casting was prepared by condensation polymerization of furfuryl alcohol and the reaction product between phenol,phenylphenol,urea and formaldehyde. 苯酚、苯基苯酚、尿素与甲醛的反应产物进一步与糖醇缩聚生成新型铸造用改性酚醛树脂粘结剂。
High-grade filling and retanning agent CDF was prepared by condensation polymerization reaction of urea,cyanuramide and dicyandimide.The property and application of the product were discussed. 本文主要论述了用脲、双氰胺、三聚氰胺等原料经缩聚反应制备填充复鞣剂CDF的方法及其性能与应用。