Only the constituent comonomer units of the polymers in the series under consideration are to be compared. 只有在同级予目中的聚合物共聚单体单元才可以进行比较。
The yield, molecular weight, polar comonomer content and melting temperature of the poly ( olefin-ester) s can be controlled by the change of polymerization reaction condition. 改变聚合条件,可控制烯烃共聚酯的分子量、极性单体插入率和熔融温度等性质。
Quantitative analysis of organic functional groups difunctional comonomer 有机官能团定量分析二官能[团]共聚单体
Influence of interfacial agent and comonomer on surface performance of solid-phase grafting polypropylene 界面剂与共聚单体对固相接枝聚丙烯表面性质的影响
From the results of cyclic voltammograms and ultraviolet-visible spectra it was concluded that the nature and the content of comonomer have significant influences on the electrochemical activities and stability of copolymers, but not on affect the color of reduction states of these copolymers. 循环伏安曲线和紫外-可见光谱的测定结果表明:活性中心的含量及不同第二共聚单体对联吡啶共聚物的电化学活性和稳定性有比较显著的影响,但不影响其光谱性质。
The results show that the melting temperature and crystallinity decrease markedly with the increase of comonomer in the ethylene/ a-olefin copolymer. 结果表明:在所得乙烯/α-烯烃共聚物中随着共聚单体含量的增大,共聚物的熔点和结晶度明显降低;
Stability of Emulsifier free Emulsion Copolymerization of MMA/ BA/ Comonomer with Two Functional Groups 将两组病例进行对比研究。MMA/BA/双官能团单体无皂共聚乳液的稳定性
The electrolyte-resistance of latex stability increased using hydrophilic functional comonomer. 加入亲水性单体使胶乳粒子的稳定性增强。
The comonomer content is proportioned to the feeding concentration. 发现聚合物共单体含量基本与共单体进料浓度成正比。
Some factors affecting melt strength are analysed such as polymer structure factors including melt index, long chain branching, comonomer type and molecular weight distribution and measuring conditions incorporating temperature, extrusion rate and draw distance. 分析了聚合物的结构因素包括熔体流动速率、长支链、共聚单体和相对分子质量分布以及测试条件包括温度、挤出速率和拉伸长度对熔体强度的影响。
Polymerization of acrylate and comonomer in alcohol 丙烯酸酯在乙醇中聚合反应的研究
Finally the structure and nature of the third comonomer and terpolymers are analysed. 本文还对第三单体及共聚体的结构、性能进行了分析。
Effects of the polyvinyl alcohol, comonomer, temperature and emulsifiers on the properties of cigarette adhesive were discussed. 讨论了聚乙烯醇、共聚单体、温度、乳化剂对卷烟胶性能的影响。
The preparation of water-based fluorine containing copolymer and the composition of its paint were introduced, The influence of different comonomer 、 emulsifier 、 initiator 、 pH controlling agent on the properties of the paint were discussed. 对水性含氟共聚物的制备以及其涂料的组成作了介绍。论述了不同共聚单体、乳化剂、引发剂、pH缓冲剂等因素的作用及其对水性含氟涂料性能的影响。
This paper reviewed the late transition metal ( Ni, Pd, Fe, Co) catalysts 'structures, catalytic mechanism and applications in the homopolymerization of olefin as well as copolymerization of the olefin with polar comonomer. 从聚合机理出发,综述了后过渡金属Ni、Pd、Fe、Co催化剂的结构、催化机理及其在烯烃、极性单体均聚、共聚中的应用。
The effect of AA content, latex solid content, comonomer component and feed technique on particle size and its distribution, thickening with alkali and waterproof of latex film were compared. 比较了丙烯酸含量、乳液固含量、共聚单体组分、加料方式等对羧基胶乳的粒度和粒度分布、碱增稠性和皮膜耐水性的影响。
In this paper, polyacrylate rubbers have been prepared by bulk casting, taking methyl acrylate and butyl acrylate as comonomer. 本论文以丙烯酸甲酯、丙烯酸丁酯作为共聚单体,采用本体浇注的方法制备出聚丙烯酸酯橡胶。
The effect of different comonomer on the infrared spectrum of polyethylene in polyethylene copolymer is studied. An analysis method for fast determining the methyl ( comonomer) content in polyethylene copolymer by infrared spectrophotometry is established. 概述了聚乙烯共聚物中不同共聚单体对聚乙烯红外光谱的影响,建立了用红外光谱法快速测定聚乙烯共聚物中甲基含量的分析方法。
Copolymer size can adjust size and size film performance by changing comonomer type and amount. 共聚浆料通过改变各共聚单体的种类和配比能调节其浆液和浆膜性能;
A study of the grafted copolymerization of potato starch with butyl acrylate as comonomer, and APS as initiator by microwave radiation has been mode. 研究在微波场中用APS引发土豆淀粉与丙烯酸丁酯的接枝共聚规律。
Effect of Cationic Comonomer DMC on MMA/ BA/ DMC Soap-free Emulsion Polymerization 阳离子型共聚单体DMC在MMA/BA/DMC无皂乳液聚合中的影响
Effects of molecular weight, polymer concentration, comonomer concentration, temperature and additives on the viscosity of the solution were discussed. 研究了共聚物溶液的流变性,讨论了分子量、固含量、共聚单体含量、温度、外加添加剂对共聚物溶液粘度的影响。
The effects of reaction temperature, monomer and comonomer concentration, initiator concentration and reaction time on the grafting degree, grafting efficiency and Melt Flow Rate ( MFR) of the resulted grafting copolymer were investigated respectively. 分别考察了反应温度、单体及共单体用量、引发剂用量和反应时间等对接枝率、接枝效率和接枝物熔体流动速率(MFR)的影响。
Comonomer IA or MIA could effectively decrease the crystal degree and crystal size. 共聚单体IA、MIA能有效降低PAN原丝的结晶度和晶粒尺寸。
Effect of comonomer, cross-linking monomer and curing temperature on the 180 ° stripping time was researched and characterized by peel off intensity tester. 研究了共聚单体、交联单体、固化温度对180°剥离时间的影响,用剥离强度仪进行表征。
Firstly, the reactivity ratios of comonomer were calculated. The composition and sequence distribution of copolymers were conjectured statistically. 第一,聚丙烯腈共聚合反应的动力学规律研究,计算了单体的竞聚率,统计推测了PAN的链段序列分布规律。
In view of this situation, according the introduction of polycarbonate diols in the polyacrylate and controlling the the proportion of comonomer to prepared the bright polyacrylate, which has better brightness and the mechanical properties is improved. 针对这种情况,本课题在聚丙烯酸酯中引入聚碳酸酯二元醇,控制共聚单体的比例合成光亮型聚丙烯酸酯,可以提高聚丙烯酸酯成膜的光亮度,同时还可以改善膜的力学性能。
The results show that the obvious positive comonomer effect was exist in in situ copolymerization catalytic system. 结果表明,在原位共聚催化体系中存在明显的共单体效应。