结果表明:苯乙烯单体成功接枝到壳聚糖分子上;
The results showed St monomers were grafted onto the molecular of Chitosan;
苯乙烯脱气塔是丁苯橡胶装置中苯乙烯单体回收系统的主要设备。
Styrene degassing tower is one of chief equipments of styrene monomer recover system of StyreneButadiene Rubber device.
的PS可以用粉笔加息行动的改善市场价格苯原料,这是用于制造苯乙烯单体。
The PS hikes can be chalked up to an improving price market for benzene feedstock, which is used to make styrene monomer .
通过实验对发泡聚苯乙烯热解回收苯乙烯单体的工艺流程提出了优化操作条件。
The optimum conditions for the technological process of recovering styrene monomer from foamed polystyrene were found.
该催化体系有较高的低温稳定性,在陈化时加入少量苯乙烯单体能增强其稳定性。
The catalyst system is very stable at ambient temperature and its stability is enhanced by addition of small amount of styrene monomer during preparation.
粗产物经简单蒸馏,苯乙烯的总回收率为89.41%,苯乙烯单体纯度可达99.9%以上,并对催化剂进行再生利用,效果较为理想。
Crude product by simple distillation, styrene recovery was 89.41% of total styrene monomer purity of 99.9%, and catalyst recycling, the effect is better.
分散稳定剂和单体用量是影响聚苯乙烯微球粒径分布的两个主要内部因素。
The amount of stabilizer and monomer were major internal factors that affected the size distribution of polystyrene microspheres.
分散稳定剂和单体用量是影响聚苯乙烯微球粒径分布的两个主要因素。
The amounts of stabilizer and monomer are the major factors that affected the size distribution of polystyrene microspheres.
分散稳定剂和单体用量是影响聚苯乙烯微球粒径分布的两个主要因素。
The amount of stabilizer and monomer were major factors influencing the size distribution of polystyrene microspheres.
ABS的多功能性來源于其三种组成单体丙烯睛,丁二烯和苯乙烯。
The versatility of ABS is derived from its monomer building blocks Acrylonitrile, Butadiene and Styrene.
阐明了聚乙烯毛细管辐射接枝苯乙烯时,剂量、剂量率、单体浓度、溶剂、温度和交联剂等对接枝率的影响。
The effects of dose, dose rate, monomer concentration, solvents, temperature and crosslinking agents on the graft copolymerization of styrene with polyethylene capillary were illustrated.
以最常见的两种单体甲基丙烯酸甲酯和苯乙烯为例。
Take the most widely used monomers, styrene and methyl methacrylate as an example.
以4 -叔丁基苯乙烯为单体,采用自由基悬浮聚合法合成了颗粒状高吸油树脂。
Granular high oil-absorbing resin was prepared by free radical suspension polymerization process using 4-tert-butyl styrene as monomer.
目的:观察分散聚合法中分散介质及单体用量对聚苯乙烯微球粒径与分布宽度的影响。
OBJECTIVE: To investigate the influence of dispersing medium and monomer dosage of dispersion polymerization on the particle size the distribution width of the polystyrene microspheres.
此方法也用于包含两种或两种以上单体的系统(共聚),例如苯乙烯和丁二烯。
This method is also applicable to systems involving two or more type of monomers (copolymerization), for example, of styrene and butadiene.
随着单体和引发剂用量的增加,聚苯乙烯微球的粒径增大。
The size of polystyrene microspheres increased with increasing amount of monomer and initiator.
结果表明,当聚苯乙烯大单体的投料质量分数在40%左右时,此接枝共聚物是一种性能良好的热塑性弹性体。
The graft copolymer was a kind of thermoplastic elastomer with good mechanical properties when mass fraction of polystyrene macromer was about 40%.
这些化合物能均聚反应,亦易与苯乙烯、甲基丙烯酸甲酯及丙烯腈等乙烯类单体共聚合,得有色的高聚物。
These colored compounds can be homopolymerized and copolymerized with most vinyl monomers such as styrene, methyl methacrylate and acrylonitrile, to give the corresponding colored polymers.
聚苯乙烯的粒子形态与溶剂种类和单体浓度有很大关系。
The particles morphology of polystyrene was much related to the types of solvent and concentration of monomer .
三中单体的聚合产生了具有两相的三元共聚物,一个是苯乙烯-丙烯腈的连续相, 另一个是聚丁二烯橡胶分散相。
The polymerization of the three monomers produces a terpolymer which has two phases: a continuous phase of styrene-acrylonitrile (SAN) and a dispersed phase of polybutadiene rubber.
方法:以苯乙烯为单体,二乙烯苯为交联剂,采用二步溶胀法合成单分散、大粒径的聚苯乙烯高分子微球。
Methods: Prepared the monodisperse and big diameter crosslinked polystyrene microspheres with Two Step Swelling Method, Using diVinylbenzene as the crosslink agent.
在聚苯乙烯生产装置投用注水系统进行脱挥,分析了聚苯乙烯残留单体含量的主要影响因素;对注水系统提出了改进建议。
Water injection system were used in removing unreacted styrene from polystyrene, The main factory of effecting residual monomer content of polystyrene were discussed.
方法:(1)以硅胶柱色谱法,乙酸乙酯-石油醚梯度洗脱,自何首乌中提取分离二苯乙烯苷单体成分。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
研究了聚合溶剂,单体浓度,反应温度以及配合物中稀土离子性质对催化活性和所得聚苯乙烯分子量的影响。
The effects of the solvent, monomer concentration, temperature and rare earth element on the polymerization and the molecular weight of polymer were investigated.
苯乙烯:一种无色油状液体,化学式为C6H5CH:CH2,是构成聚苯乙烯的单体。
A colorless oily liquid, C6H 5CH:CH 2, the monomer for polystyrene.
用分散聚合方法制备了单分散聚苯乙烯微球,并研究了分散稳定剂、引发剂、溶剂和单体含量对聚合物微球粒径大小的影响。
The effects of temperature and the concentration of dispersion stabilizer, initiator, solvent and monomer on the particles size have been studied.
将聚苯乙烯溶解在甲基丙烯酸甲酯单体或其与苯乙烯的混合液中进行原位聚合,制备高散射有机玻璃导光材料。
High scattering optical transmission PMMA was prepared by the in situ copolymerization of methyl methacrylate and styrene with polystyrene.
本文以苯乙烯和丙烯酸酯的低分子共聚物为B段,以含有极性基团的单体为A段合成了A—B嵌段型颜料分散剂。
An A-B blocked pigment-dispersing agent has been synthesised , in which the A block is a monomer with polar groups and the B fo'oek is the oligomer of styrene and acrylate with lower molecular weight.
分散稳定剂和单体用量是影响聚苯乙烯微球粒径分布的两个主要内部因素。
The amount of stabilizer and monomer were major internal factors that affected the size...
分散稳定剂和单体用量是影响聚苯乙烯微球粒径分布的两个主要内部因素。
The amount of stabilizer and monomer were major internal factors that affected the size...
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