通过丁烯和异戊二烯的共聚作用化合而成的一种合成橡胶，几乎不透空气，用作轮胎、内管道和绝缘等的材料中。
A synthetic rubber produced by copolymerization of a butylene with isoprene, nearly impermeable to air and used in tires, inner tubes, and insulation.
鉴于上述结果，作者认为头发黑素可能是由不含硫的氨基酸和含硫氨基酸通过复杂的氧化作用和共聚作用生成的无规则聚合物。
The above results suggest that hair melanin iss complex random polymer, formed by a very complicated process of oxidation and copolymerization of both sulfur-containing and non-sulfur amino acids.
酯化处理所产生的接触角增大作用要比接枝共聚所产生的作用大；
The effect of the esterification on contact angle is obviously bigger than that of graft copolymerization.
经乙酰化，膦化反应后的共聚体可以与二正丁胺作用制得膦酰胺树脂。
The copolymer after acetylation and phosphonylation can react with dibutyl amine to yield the corresponding dibutylamidophosphate resin.
利用偏光显微镜观察了聚丙烯共聚物(CPP)在透明成核剂TM - 3作用下的等温结晶形态。
The isothermal crystallization morphology of polypropylene copolymer (CPP) containing TM-3, a clarifying nucleator, was observed by polarized light microscope.
讨论了甲基丙烯酸甲酯（MMA）与CPE的接枝共聚物体系对PVC-CPE体系的增容作用。
The grafted copolymers of methyl methacrylate (MMA) and CPE as the compotilizer of the PVC/CPE blends are discussed.
发现二氧化钛不仅对共缩聚反应具有良好的催化作用，且对提高共聚物的热稳定性亦有贡献。
It was found that titanium dioxide possesses not only good catalytic action, but also improves the thermal stability of the resulted copolymer.
考察了苯乙烯-二元乙丙橡胶嵌段共聚物(SEP)和三元乙丙橡胶(EPDM)对聚丙烯(PP)的增韧作用。
The effect on the toughening of polypropylene (PP) by styrene-ethyl ene propylene diblock copolymer (SEP) as well as EPDM was studied.
以苯乙烯马来酸酐的共聚物树脂作为乳化剂，研究了其对形成蜜胺甲醛树脂微胶囊的乳化和成囊的作用机理。
The effect of the emulsifier styrene maleic anhydride copolymer (SMA) on the emulsification and encapsulation of melamine formaldehyde resin microcapsule was studied.
用正电子湮没寿命谱研究了手性丙烯酸酯侧链液晶共聚物分子主链与介晶基元侧链的运动行为及相互作用。
Motional behaviour and interaction between main chain and side chain of mesogenic moiety of liquid crystalline copolymer were studied by positron annihilation lifetime spectroscopy.
通过试验得到了最佳工艺条件，同时对其增强机理进行了探讨，结果表明此接枝壳聚糖共聚物有良好的增强作用。
Through the study, the optimum technical parameter was obtained, and it was also proved the chitosan copolymer had good strengthening effect on fibers.
在引发剂的作用下，配合物4和苯乙烯进行自由基共聚，得到高分子化催化剂6。
The corresponding polymer-incorporated zirconium catalyst 6 was obtained by the co-polymerization of the olefin group of catalyst 4 with styrene in the presence of a radical initiator.
比较了不同链转移剂的作用效果；研究了2-巯基乙醇作为链转移剂对聚合过程和共聚物相对分子质量的影响。
Effects of as 2 - mercaptoethanol chain transfer agent to polymerization and the relative molecular weight of copolymer were studied.
研究表明，该共聚物对某些含蜡原油有很好的降凝作用，是一种新型的原油降凝剂。
The research proved that the copolymer have very good pour point depressing effect on paraffin-base crude oil. It is a new kind of pour depressor.
研究了丙烯酸接枝共聚型高效减水剂acs对水泥浆产生分散-流化作用的机理。
The mechanism of dispersion fluidization effect of ACS on cement particles was discussed.
阐述了采用溶液聚合和乳液聚合合成含氟共聚物的方法，探讨了含氟整理剂防水、防油、防污的作用机理。
The solution copolymerization, emulsion copolymerization, and mechanism of waterproof, oilproof and antisoil of fluorine containing finishing agents are discussed.
结果表明，加入1～3份不同种类的相容剂均可明显改善共混物的力学性能，其中嵌段共聚物SEBS的作用效果最佳。
The results showed that the mechanical properties of blend were significantly improved by adding 13 phr of different compatibilizers, in which a block copolymer, SEBS was the most effective.
计算各组细胞死亡率、细胞生长抑制率、克隆形成率并观察形态学变化，应用凝胶电泳、激光扫描共聚焦显微镜观察分析小叶黑柴胡作用MGC- 803细胞后的细胞DNA含量的改变。
The changes of morphology, death rate, the inhibition rate of cell growth, cloning efficiency were observed. DNA content of MGC-803 were measured with the laser scanning confocal microtechnic.
以苯乙烯马来酸酐的共聚物树脂作为保护胶体，研究了其对原位聚合法形成蜜胺甲醛树脂微胶囊的乳化和成囊的作用机理。
The effect of the emulsifier styrene maleic anhydride copolymer(SMA) on the emulsification and encapsulation of melamine formaldehyde resin microcapsule was studied.
本发明提供含有聚合物基体、多种填料、以及嵌段共聚物的组 合物，其中该嵌段共聚物的至少一个链段与该填料相互作用。
Provided are compositions comprising a polymeric matrix; a plurality of fillers; and a block copolymer wherein at least one segment of the block copolymer interacts with the fillers.
并将谱带的变温行为与液晶转变相关联。结果表明，芳香共聚酯热致性液晶中液晶基元之间的相互作用很强而柔性间隔链之间的相互作用很弱。
The result suggests that the interaction between the mesogenic cores is dominant in forming the mesophase, while the interaction between flexible chain spacers is very weak.
研究了三聚氰胺磷酸盐(M P)和季戊四醇(PER)作为膨胀型阻燃剂(ifr)在乙烯-醋酸乙烯酯共聚物(EVA)中的阻燃作用。
Flame retardation of EVA copolymer using melamine phosphate (MP) and pentaerythritol (PER) as intumescent flame retardants (IFR) was investigated.
研究了三聚氰胺磷酸盐(M P)和季戊四醇(PER)作为膨胀型阻燃剂(ifr)在乙烯-醋酸乙烯酯共聚物(EVA)中的阻燃作用。
Flame retardation of EVA copolymer using melamine phosphate (MP) and pentaerythritol (PER) as intumescent flame retardants (IFR) was investigated.
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