The different initiation systems affecting the graft of lignosulfonate with acrylic acid was studied in this paper.
研究了三种常用引发体系对木质素磺酸盐接枝丙烯酸反应的影响;通过比较三种接枝共聚产物的接枝率和阻垢性能,得出选用Fe2+-H2O2为该合成反应的引发体系较优的结论。
All kinds of initiation method can be used to make starch become free radical, then it will react with acrylonitrile.
淀粉与丙烯腈进行的接枝共聚反应是一种自由基反应,可以利用各种引发方法引发淀粉形成自由基,而后和丙烯腈进行反应。
A series of polypropylene grafted with two types of monomers was prepared with DCP/BPO as the initiation system.
以过氧化二异丙苯 /过氧化二苯甲酰引发体系引发制备了各种聚丙烯的双单体接枝物 ,并对这些接枝物进行各种性能测试 ,确定了最佳的接枝单体组合、组成和工艺条
The reaction was initiated by the oxidation-reduction system which was composed of APS and the amino-group of carboxymethyl chiti.
以过硫酸铵为引发剂,制备了羧甲基甲壳素接枝丙烯酸甲酯共聚物,讨论了反应条件对接枝率和接枝效率的影响。
[4-[(3,5-Di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl ]phenyl]acetylene(EPHG) was synthesized,which was initiated by the catalytic system consisting of Rhodium complex and chiral amine to provide one-handed helical polymer confirmed by CD-UV spectras.
本文合成了4-[(3,5-二异丁基-4-羟基苯)(3,5-二异丁基-4-苯醌基)甲基]苯乙炔单体(EPHG),由铑络合物和手性胺催化体系引发聚合,利用CD-UV谱图确认生成的聚合物是螺旋结构。
Two new methods of emulsified copolymerization are put forward in the paper, the copolymerization of styrene and tung oil initiated by the oxidation of tung oil a.
在前期的工作中发现,桐油/苯乙烯乳液共聚很难用引发剂引发的常规乳液聚合方法进行。
Effects of PEG-6000 solution priming on germination of Bothriochloa ischaemum seeds;
PEG-6000引发对白羊草种子发芽的影响
Effects of seed priming with chitosan solutions of different acidity on seed germination and physiological characteristics of maize seedling.;
不同酸度壳聚糖溶液引发对玉米发芽和幼苗生理特性的影响
Effects of Osmotic Priming with Polyethylene Glycol onSeed Germination and Vigour of Some Herbage Species;
聚乙二醇引发对几种牧草种子发芽率和活力的影响
There are two factors that cause geological disaster, namely, natural reason and improper human activities.
由于自然原因造成的地质灾害的防治是各级政府的共同责任,防治经费应在划分事权和财权的基础上,分别列入中央和地方有关人民政府的财政预算;因人为活动引发的地质灾害的治理费用,按谁引发谁治理的原则由责任单位承担。