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The effects of the composition of catalyst (the structure and amount of bident ligand and strong acid, the cocatalytic activity of Cu〓, the roles of methanol and phenol etc.) and the copolymerization condition (the reaction time, temperature, amount of ST and CO, the structure and amount of solvent etc.) on catalytic activity were studied. The principle of the copolymerization was investigated.
研究了催化体系组成（含氮双齿配体的结构与用量、强酸的结构与用量、铜盐的助催化作用、甲醇和酚类化合物作用等）和共聚反应条件（共聚反应的温度与时间、溶剂种类与用量、苯乙烯与一氧化碳量等）对溶液共聚反应的催化活性的影响，探索溶液聚合反应规律。
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The effects of the composition of catalyst (the structure and amount of bident ligand and strong acid, the cocatalytic activity of Cu〓, the roles of methanol and phenol etc.) and the copolymerization condition (the reaction time, temperature, amount of ST and CO, the structure and amount of dilution reagent etc.) on catalytic activity were studied in detail. Also the optimum copolymerization condition was chosen.
深入考察了催化体系组成（含氮双齿配体的结构与用量、强酸的结构与用量、铜盐的助催化作用、醇类与酚类化合物的作用等）和沉淀共聚反应条件（共聚反应的温度与时间、稀释剂结构与用量、苯乙烯与一氧化碳量等）对该共聚反应的催化活性的影响，优化共聚反应的聚合条件。
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These effects may be due to frequent reactivation of the active center for blocky copolymer by hydrogen.
我们推测这可能是由于H_2对发生丙烯二级插入的嵌段性活性中心频繁活化的作用，导致原来不加氢时生成嵌段共聚物转化为加氢下生成无规共聚物。
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With the increase of imide content in copolymer, the elongation at breakage raised and the water absorption reduced.
而共聚物中较高的亚胺链段含量，则起到提高共聚物的韧性，并降低吸水率的作用。
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The polymeric soil amendmentswere applied in increasing soil value,and reclamation of saliane sodic soil,and greeningdesert,and controlling water and soil erosion,and amending arid and semiarid soil,andincreasing fertilizer utilization rate and crop yield,etc.
本文研究了淀粉接枝共聚物、羧甲基纤维素接枝共聚物、壳聚糖接枝共聚物、聚丙烯酰胺及其衍生物等对赤红壤的改良作用，揭示了赤红壤在这些聚合物作用下理化参数的变化规律。
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The degradable starch treated by α-amylase was grafted onto methyl acrylate to produce graft copolymer initiated by ammonium cerous nitrate, the degradable film was produced by molten mixing the above copolymer and linear low density polyethylene, the properties of the degradable film were characterized by means of mechanical property testing, SEM, TG analysis and degradation experiment.
将α-淀粉酶降解淀粉在引发剂硝酸铈铵的作用下与丙烯酸甲酯接枝生成共聚物，用该共聚物与线型低密度聚乙烯熔融混炼制成可降解薄膜，通过力学性能测试、扫描电镜、热失重分析和降解性能实验等对其进行表征。
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OBJECTIVE: To investigate the biocompatibility of poly (DL-lactide-coglycolide). Copolymer ratio of lactide: glycolide was 85:15 or 50:50and evaluate its effect on nerve guidance.
目的：对共聚比为(85：15)及(50：50)的聚乳酸-聚羟基乙酸共聚物材料的生物相容性及神经再生诱导作用进行对比观测。
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The stable or unstable state of the montmorillonite-water dispersion is mainly effected by the properties of montmorillonite, water, and stabilizers as well as their interactions, while the type, the structure, the properties and the concentration of the stabilizer play dominate roles. Based on the molecular designing clues, this research selected three sulfonated copolymers as the stabilizers, i.e. the sodium 2-acrylamido-2-methyl-1propane sulfonate /acrylamide /disodium itaconate terpolymer, the AMPS/AM/N-vinyl pyrrolidone terpolymer and the sodium styrenesulfonate /IA copolymer. The preparation and characterization of the sulfonated copolymers were discussed, the high-temperature stability of the montmorillonitewater dispersion was characterized with the rheology, the filtration, the particle size distribution, the electrostatic properties, and the adorption of the sulfonated copolymers onto montmorillonite particles. At the same time, a systematic mechanism of the hightemperature stabilization of the dispersion was presented.
本文构筑了分子设计的思路，选取AMPS(2-丙烯酰胺基-2-甲基丙磺酸钠)/AM/IA三元共聚物、AMPS/AM/NVP三元共聚物和SSA/IA二元共聚物等三种磺化共聚物作为蒙脱土-水分散体系的高温稳定剂，进行了磺化共聚物稳定剂的制备与表征；从流变学、滤失性能、粒度分布、电性质以及磺化共聚物在蒙脱土上的吸附作用等方面，对蒙脱土-水分散体系的高温稳定性进行了研究，考察了蒙脱土-水分散体系的高温稳定性能，同时提出了高温稳定机理。
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During the non-isothermal crystallization, compared with common PE, the cooling rate had less impact on the crystallization rate of mPE. Second, the sensitivity of the melt viscosity of mPE to the shear rate was poor, and the introduction of long chain branches onto the molecular structure of mPE could improve the dependence of their melt viscosity on both shear rate and temperature. In the extensional rheometric tests, the occurrence of phenomena of'strain hardening' relied on the structure of linear long chains, and mPE didn't show the behavior of'strain hardening', which implied that the melt strength ofmPE was poor.
其中通过共聚方法在mPE分子中引入非线性长支链结构，对提高mPE熔体粘度对温度的依赖性作用较为明显，而对提高mPE熔体粘度对剪切速率的依赖性以及对提高mPE熔体强度作用较弱；采用共混方法在mPE体系中引入线性长支链结构，则对提高mPE熔体粘度对剪切速率的依赖性以及提高mPE的熔体强度的作用较为明显，而对于提高mPE熔体粘度对温度的依赖性作用相对较弱。
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This dissertation successfully fabricated cross-linked polysiloxanes under base catalysts such as potassium hydroxide siloxanolate or tetramethylammonium hydroxide (Me_4NOH) siloxanolate by anionic ring-opening copolymerization of cyclosiloxanes and Polyhedral Oligomeric Silsesquioxanes as multifunctional monomers.
本论文首次通过阴离子开环共聚，成功地将POSS大分子作为多官能团单体，与环硅氧烷在KOH硅醇盐或Me_4NOH硅醇盐等碱性催化剂的作用下，直接合成交联聚硅氧烷：通过调节POSS大分子和环硅氧烷单体的种类以及化学计量比，可合成出一系列不同种类和不同交联密度的交联聚硅氧烷；并对其阴离子开环共聚机理以及极性调节剂DMAc对凝胶时间的影响进行了详细讨论；同时借以凝胶含量和溶胀比、GPC、FT-IR、固体~(13)C和~(29)Si NMR、WAXD、DSC以及TG等手段对所得聚合物的微观结构以及热性能进行了详细考察。
- 更多网络解释与共聚作用相关的网络解释 [注：此内容来源于网络，仅供参考]
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copper acetylide：乙炔铜
copolymerization 共聚作用 | copper acetylide 乙炔铜 | copper alloy 铜合金
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copolymer：共聚体
coping saw 曲线锯,手工锯 | copolymer 共聚体 | copolymerisation 共聚合作用
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copolymerization：共聚作用
c, opolymer 共聚物 | copolymerization 共聚作用 | corbel 梁托
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azeotropic copolymerization：共沸共聚<作用>
azeotropic copolymer 共沸共聚物 | azeotropic copolymerization 共沸共聚 | azeotropic distillation 共沸蒸馏
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coriander oil：芫荽油(食用增香剂)
copolymerisation;copolymerization 共聚作用 | coriander oil 芫荽油(食用增香剂) | coriandrol 芫荽(萜)醇
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azeotropic copolymerization：共沸共聚<作用>
azeotropic copolymer 共沸共聚物 | azeotropic copolymerization 共沸共聚<作用> | azeotropic distillation 共沸蒸馏
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interpolymer：共聚体
interpole 间极;附加磁极 | interpolymer 共聚体 | interpolymerization 共聚作用
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interpolymer：共聚物,异分子聚合物
interpoly dielectric 多晶硅层间介质体 | interpolymer 共聚物,异分子聚合物 | interpolymerization 共聚作用
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copolymerizing：共聚作用
Copier 复印机 | copolymerizing共聚作用 | copolymer共聚物,共聚体
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block furnace：方电炉
block copolymerization 团联共聚<作用>;嵌段共聚<作用> | block furnace 方电炉 | block grease 块脂