1) branching
[英]['brɑ:ntʃiŋ] [美]['bræntʃɪŋ]
支化
1.
Effect of concentration and charging methods of n dodecyl mercaptan on MW, MWD and branching of polychloroprene;
正十二硫醇对氯丁橡胶相对分子质量及其分布和支化程度的影响
2.
Several new modified demulsifiers were synthesized by the chain expending and branching of polyether B61.
B61聚醚用己二酸扩链引入羧基官能团,然后用三乙撑四胺、D-山梨醇、D-木糖、季戊四醇等对扩链产物进行支化,合成了若干扩链支化型破乳剂。
3.
In this paper,the effect of branching and crosslinking structure on the impact strength was studied using self-plastication and post self-plastication.
本文研究了漆膜结构中的交联和支化程度对抗冲击强度的影响关系 ,并通过调节交联密度和使用一元饱和脂肪酸对罩光漆进行支化改性 ,大大提高了丙烯酸粉末罩光漆的抗冲击强度 。
2) branch
[英][brɑ:ntʃ] [美][bræntʃ]
支化
1.
The Arrhenius equations of urethane and branch reactions are obtained respectively: k 1 =27 17 exp(-19 79/R T ), k 2 =5 886 exp(-22 86/R T ).
提出一种新的测试聚氨酯预聚物合成反应过程中氨酯化反应和支化反应的动力学参数的理论模型 。
2.
This value is closely related to the type and consistency of branch.
用１３ＣＮＭＲ技术研究了不同支化链的高密度聚乙烯的支化种类及支化浓度，考察了支化对其密度及结晶度的影响。
3.
The micro branch high molecular weight poly(phenylene sulfide)(MBHMWPPS)was prepared from sulfur and P-dichlorobenzene (P-DCB) in polar organic solvent by useing 1,2,4-trichlorobenzene( TCB) as third monomer([TCB]/[P-DCB]<1.
用硫磺、对二氯苯为原料，在极性有机溶剂中，以１，２，４－三氯苯作共聚反应第三单体，共缩聚制得了微支化型高分子量聚苯硫醚（ＰＰＳ）树脂，在缩聚反应中，第三单体量一定时，一定时间内聚合物对数低切变粘度值与反应时间具有线性关系。
3) branched
[英][brɑ:ntʃ] [美][bræntʃ]
支化
1.
A series of hyperbranched polystyrene containing only one double bond on their focal points have been prepared from chloromethylstyrene and styrene by metal catalyzed living radical polymerization catalyzed by the complex of CuCl/2, 2′ bipyridyl.
以氯甲基化苯乙烯 (CMS)、苯乙烯、2 ,2′-联吡啶 (Bpy)和 Cu Cl组成过渡金属催化原子转移自由基聚合反应体系 ,通过自缩合乙烯基聚合反应合成了带有端双键的超支化聚苯乙烯 (HBPS)。
2.
It has been further proved that formation of co-crystal is related to chemical structure of these PEs(branching degree and kind of branched chain .
发现熔融共混物的热行为特征与溶液共混共沉物的不同，表明不同品种ＰＥ共混物的晶相能否形成共晶与其共混方法有关，并且进一步证明了形成共晶与否确与共混组分的支化程度和支链类型有
3.
Secondly, the sodium S-alkylthiosulfuric-containing styrene monomer (SATCS) was designed and synthesized through the Bunte salt reaction, we use SATCS as monomer , AIBN as initiator to prepare Branched PSATCS in DMSO solvent and we also use SATCS as branched monomer together with styrene (St) and AIBN to prepare branched polystyrene (BPS) in DMSO solvent.
本文预设计具有较大空间结构的含液晶基元的疏水性单体,并通过ATRP聚合法和巯基链转移支化聚合法获得含液晶基元的聚合物,并对其性能进行了测试。
4) degree of branching
支化度
1.
The various definitions for the degree of branching(DB)of hyperbranched polymers were reviewed and an improved definition was presented for the general ABg polycondensation system.
用聚合反应动力学模型,详细分析了ABg型缩聚体系中各种结构单元的演变,对超支化聚合物支化度的各种定义作了比较,并对ABg型反应体系的支化度提出了一个改进的定义,使得支化度随g的增加而增加,当g从2增加到无穷大,最大支化度相应地从0。
2.
The effect of end group, chain factor (n) and the degree of branching on the main chain of R(?)CH_2(?)_n R on △_fH_m~(?)(R(?)CH_2(?)_nR, g) was discussed.
考虑到影响R_1CH_2_nR_2的气相标准生成焓△_fH_m~(R_1CH_2_nR_2,g)的各种因素,包括端基,链因子(n)及主链上取代基的支化度等。
3.
The structural units and degree of branching of the hyperbranched polymers formed from general self-condensing vinyl polymerization(SCVP) with non-equal reactivities were investigated by the mecha-nism of kinetics.
分析了一般的非等速率自缩合乙烯基聚合反应(SCVP)所生成的超支化聚合物体系的结构单元和支化度。
5) long chain branching
长链支化
1.
High-melt-strength polypropylene is achieved with modified PP through long chain branching.
通过长链支化来改性PP ,从而得到高熔体强度的PP。
2.
Long chain branching LLDPE was prepared via initiating the long chain branching reaction of matrix LLDPE by preirradiated LLDPE.
利用预辐照线型低密度聚乙烯(rLLDPE)引发基体LLDPE的长链支化反应,制备出长链支化LLDPE。
6) hyperbranch
超支化
1.
Preparation and characterization of a novel hyperbranched poly(amide-ester);
新型超支化聚(酰胺-酯)的制备及表征
2.
The special characteristics of hyperbranched Gemini quaternary ammonium salt were researched and the applications in oil field,paper making,industrial water treatment,printing PCB, pesticide and textile auxiliary were discussed also.
以十二叔胺、环氧氯丙烷为原料,在80℃反应4h先合成季铵盐,然后再在催化条件下,85℃反应8h聚合成超支化Gem in i季铵盐。
3.
In this paper,the recent progress in crosslinkable polymer and hyperbranched polymer and their application in NLO material based on fluorene have been reviewed.
对于聚合物在有机电子学方面应用的飞速发展,本论文综述了基于芴的可交联、超支化聚合物在OLED中的应用以及聚合物的非线性性能,并提出在这些领域中需要解决的问题。
补充资料：支化
分子式：
分子量：
CAS号：
性质：高分子化合物由于聚合时的副反应而产生分枝的过程。其产物称支链型高分子化合物。例如丁二烯聚合时，单体分子能产生链自由基，并与其他单体分子聚合而形成支链。表征支化程度的物理量称支化度。
分子量：
CAS号：
性质：高分子化合物由于聚合时的副反应而产生分枝的过程。其产物称支链型高分子化合物。例如丁二烯聚合时，单体分子能产生链自由基，并与其他单体分子聚合而形成支链。表征支化程度的物理量称支化度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条