查询词典 styrene

It is to say that the patch of RAFT agent on the hairy chains.PS particles with the shell of copolymer of styrene and vinylbenzyl chloride were prepared by similar seeded and starved addition processes. RAFT agent with carboxyl end-group attached on the shell surface of PS particles by group reaction. Adding NIPA and photo-initiator into the continuous phase of polymerization system, hairy PNIPA were obtained.

最后，以表面负载一层乙烯基苄氯的亚微米级单分散聚苯乙烯微球为基质，将水溶性RAFT试剂与聚苯乙烯微球表面的官能团反应以负载到其表面，再在连续相中直接引入NIPA和光引发剂，RAFT聚合得到PNIPA毛发。

Firstly, micron-size monodisperse polystyrene particles were prepared by emulsifier-free polymerization. Then the photo-initiator with double bond and ester group were attached on the surface of the PS particles by copolymerization using "starve" addition together with styrene. Finally both poly and poly(N-isopropylacrylamide) as hybrid hairy homopolymers were grafted on the surface of the PS particles by "grafting from" photo-initiation with sequential addition of AA and NIPA.

首先，通过无皂乳液聚合法合成亚微米级单分散聚苯乙烯微球种子，半连续补加法表面负载光引发剂，运用"从表面接枝"技术及顺序添加相关单体的工艺这三步法，成功制得表面含电解质PAA及温敏性PNIPA的混合型毛发，探讨其制备过程和特性研究，表明PAA链的存在对PNIPA链的温敏性有明显影响。

The method for determination of acrylic nitrile and styrene monomer in polymer polyatomic alcohol by gas chromatography was introduced.

介绍采用气相色谱法测定聚合物多元醇中丙烯腈、苯乙烯单体含量的方法。

The aim of this work is to obtain styrene monomer and high octane number gasoline fraction from polystyrene by thermal and thermal-catalytic treatment respectively.

本文的目的是用热解和热解-催化两种方法由聚苯乙烯制取苯乙烯单体和汽油组份。

Formed from beads obtained by the suspension polymerization of styrene containing a low boiling point liquid, often about 5% pentane.

由含一种低沸点液体（常用约5%的戊烷）的苯乙烯通过悬浮聚合所得珠粒料制成。

The coupling of iodobenzene with styrene was studied by perpendicularity experiment.

在有关Heck反应的文献报道中几乎没有关于反应条件优化方面的系统研究，我们以碘代苯和苯乙烯的的偶联为例，通过正交设计实验研究了各反应条件对产率的影响。

The synthesis and application of the new cationic styrene-acrylic easter co-polymer micro-emulsion was studied in lab and in pilot plant.

研究了阳离子SAE微乳液的合成及应用。

The results clearly show that styrene and MMA polymerize in different ways in the presence of CDB.

结果表明CDB调控St和MMA时聚合行为截然不同。

By using sheet styrene with polyvinyl alcohol, the release of the keel box is much easier.

利用资产负债表苯乙烯与聚乙烯醇，释放龙骨方块是容易得多。

In this paper,natural pyrethrum nano-capsule with a wall of the copolymer of styrene and methyl methactylate was prepared by means of microemulsion polymerization .

研究用微乳液聚合法制备以甲基丙烯酸甲酯和苯乙烯共聚体为囊壁，以天然除虫菊酯为囊芯的纳米胶囊。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。