chain branching
英 [tʃeɪn ˈbrɑːntʃɪŋ]
美 [tʃeɪn ˈbræntʃɪŋ]
n. 连锁分枝；链支化；分支电路分键
双语例句
- Rheological Behavior and Thermal Properties of Long Chain Branching Polypropylene Prepared by Reactive Extrusion
长链支化聚丙烯的反应挤出制备及其流变和热力学性能研究 - SOLUTION PROPERTIES AND LONG CHAIN BRANCHING OF POLYVINYL ACETATE ethylene glycol monoethyl ether acetate
聚乙酸乙烯酯的溶液性质及长链支化度乙二醇-乙醚乙酸酯，[俗]醋酸溶纤剂 - Study on long chain branching in cis-polybutadienes by GPC with double detector combination
双检测器GPC研究顺丁橡胶长链支化度 - High-melt-strength polypropylene with long chain branching ( LCB-HMSPP) was prepared via irradiation.
通过辐照法制备了长支链型高熔体强度聚丙烯（LCB-HMSPP），采用高级流变扩展系统（ARES）表征了其熔体黏弹性，采用毛细管流变仪研究了其在高剪切速率下的流变行为。 - A review of the studies on long chain branching of polymers
高聚物长链文化的研究概况 - Some factors affecting melt strength are analysed such as polymer structure factors including melt index, long chain branching, comonomer type and molecular weight distribution and measuring conditions incorporating temperature, extrusion rate and draw distance.
分析了聚合物的结构因素包括熔体流动速率、长支链、共聚单体和相对分子质量分布以及测试条件包括温度、挤出速率和拉伸长度对熔体强度的影响。 - 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。 - For the blend that the mass rate of linear polypropylene/ long chain branching polypropylene is 80:20, its crystallization temperature goes up with a reduction in cooling rate because of the presence of long chain branding polypropylene.
对于配比为80／20的线形聚丙烯／长链支化聚丙烯共混物，由于长支链的存在，降温速率越慢，结晶温度越高。 - Long chain branching and critical molecular weight of cis-polybutadiene
顺丁橡胶的长链支化与支化临界分子量 - The molecular weight, the content of short chain branching and crystallinity for each fraction were characterized by GPC, FTIR and DSC, respectively. The results confirmed that HDPE could be effectively fractionated into three different fractions with relatively narrow molecular weight distribution and defined crystallinity.
同时采用GPC、FTIR和DSC对级分的摩尔质量、支化度和结晶性能进行了测定和分析，结果表明溶液分级能够将HDPE分成窄摩尔质量分布且具有特定结晶度的级分。 - Modifying demulsifier by chain expanding and branching methods
聚醚类破乳剂的扩链与支化改性 - Extrusion foaming behavior of linear polypropylene ( LPP)/ long chain branching polypropylene ( LCBPP) blend and LPP/ nano-clay composite were investigated.
考察了线形聚丙烯（LPP）和长链支化聚丙烯（LCBPP）共混体系（LPP/LCBPP）的挤出发泡行为； - The characteristic of elementary reactions of methane is discussed and its effects on degenerate chain branching reactions of diesel are analyzed, and thus a simplified modification to Shell model is made.
柴油的着火过程是退化分支链的反应过程，根据CH4基元反应的特点，分析CH4对柴油退化分支链反应机理的影响，提出一种修正的Shell模型，并进行了试验分析。 - Quantitative Investigation of Type and Length of Chain Branching and Other Structural Units in High-and Lowdensity Polyethylenes by~ ( 13) C NMR
聚乙烯的动态力学转化行为聚乙烯支化链种类、长度及其它微量结构的~（13）cNMR定量研究 - Under the same thermal history and the rate of cooling, these fractions exhibited gradually enhanced crystallization ability with good perfection of crystals in accordance with the order, which was from larger to smaller molecular weight, and from higher to lower content of short chain branching.
在本研究范围内，在同样热历史和降温速率条件下，摩尔质量从高到低、支化度由大到小的级分非等温结晶能力依次增强，形成晶体的有序度逐渐增大。 - Characterization of long chain branching distribution and molecular weight of polychloroprene
氯丁橡胶的长链支化分布和分子量表征 - The fraction with smaller molecular weight, molecular weight distribution and lower content of short chain branching could form thinner and more uniform laminar crystals. QUALITY Quality.
较低摩尔质量且支化度小的窄摩尔质量分布级分具有较完善、分布更加均匀的薄片晶结构。 - Long chain branching in polybutadiene and polyisoprene rubbers
聚丁二烯和聚异戊二烯橡胶的长链支化 - Blend of long chain branching polypropylene attained by catalyzing MAO and linear polypropylene control molecular weight, degree of branching.
将采用茂金属催化得到的长链支化聚丙烯与线性聚丙烯（yan1301）进行共混，控制最终长链支化聚丙烯的分子量、支化度。 - It was also found that the long chain branching plays an important role, the better the linearity the higher the critical temperature.
并发现长链支化也起重要作用，线性程度愈好则临界温度也愈高。 - Study on long chain branching in polymers by method of simulating viscosity curve
拟合粘度曲线法研究高聚物的长链支化 - The strong law of large numbers and the invariant principle of Markov chain in random environment, and the growth rate of multi-type branching process in random environment.
随机环境中多维分枝链的增长率。 - The experimental data showed that the non-Newtonian behaviour of DCPD-EPDM was more pronounced than that of ENB-EPDM, which was attributed to the differences in molecular weight distribution and long chain branching.
其中双环戊二烯（DCPD）的EPDM的非牛顿性，较乙叉降冰片烯（ENB）的EPDM更为显著，这可归因于分子量分布及长链支化的不同。 - The most popular modification methods include chain extending, long chain branching and crosslinking. It is just qualitatively described that increasing long chain branching level or molecular length will decrease bubble diameter.
目前最常见的方法是扩链、长支化和交联改性，通过提高支化度或增加分子链长度降低泡孔直径。 - Batch mixer experimental results showed that a certain amount of PMDA could increase the chain extension/ branching degree of R-PET, which led to the decrease in melt flow rate, crystallization temperature and melting temperature.
密炼实验结果表明：一定量的均苯四甲酸二酐（PMDA）能够增加R-PET扩链/支化度，从而熔体流动速率减小，结晶温度和熔融温度降低。 - So it is necessary to quantitatively know the relationship among molecular structure ( especially long chain branching), rheological properties and foam structure to control foam structure accurately.
为此，有必要对分子结构（特别是长支化结构）、流变性能、泡孔结构之间的关系进行深入研究，以求在发泡过程中对泡孔结构的形成实现严密调控。 - Foamability of PET was improved with chain extending/ branching modification to a certain degree. Further study needs to be carried out with the improvement of our equipment.
对PET进行扩链/支化改性能够在一定程度上改善PET的发泡性能，由于设备条件的限制，有待在设备改进的条件下进行更深入的研究。 - Currently, the oligomer has been studied extensively. With respect to the polymer, oligomer molecular has short molecular chain, its molecular weight is monodisperse, and its degree of polymerization is the same as the branching degree.
目前，齐聚物已被广泛研究，相对于高分子聚合物，齐聚物分子链短，分子量呈现单分散性，并且聚合度和支化度相同。 - Then a study on chain extension/ branching modification of R-PET under the best processing parameters was carried out.
并在最佳工艺条件下，对R-PET进行扩链/支化改性研究。