high molecular weight polymer 中文意思是什麼

high molecular weight polymer 解釋
高分子聚合物
  • high : adj 1 高的〈指物,形容人的身高用 tall〉;高處的;高地的。2 高級的,高等的,高位的,重要的。3 高尚...
  • molecular : adj. 分子的,由分子形成的,分子內[間]的。adv. -ly
  • weight : n 1 重量;體重;求心力,重力,(地心)引力。2 斤兩,分量,衡,計重單位。3 (壓東西的)重物。4 砝...
  • polymer : n. 【化學】聚合體,聚合物,多聚物。 high molecular polymers 高聚物,高分子聚合物。adj. -ic
  1. The article analyze the concrete drying shrinkage mechanism, find the major factors of affecting the drying shrinkage, analyze the lack of shrinkage reducing agent, who be of low molecular weight and line chain, design a new shrinkage reducing agent ? ? shrinkage reducing agent of poly - acrylate. the shrinkage reducing agent of poly - acrylate is mainly composed of crylic acid 、 cinnamene 、 poly - glycol 、 solicitating agent 、 chain transferring agent and activator, which come by these processes of polymerization 、 esterifing and neutralization to form a pectinate polymer, which have a high molecular weight and many poly - oxidative alkenes

    論文分析了混凝土乾燥收縮的機理,確定了影響乾燥收縮的關鍵因素,分析已有低分子量的、直鏈型減縮劑的不足,設計了一種新型的減縮劑? ?聚丙烯酸鹽類減縮劑,其主要由丙烯酸、苯乙烯、聚乙二醇、引發劑、鏈轉移劑、催化劑等經過聚合、酯化和中和反應,生成一種高分子量的、含聚氧化烯鏈的聚合物。
  2. Increasing ultrasound intensity in the range of cavitation threshold and cavitation peak value, decreasing monomer concentration and increasing the temperature make the induction period shorter. under optimized reaction conditions, the conversion of ba can reach 90 % in 11 min at high n2 flow rate the viscosity average molecular weight of the obtained pba reaches 5. 24 106. the molecular weight of pba varies with ultrasonic irradiation time, indicating that the ultrasonic induced emulsion polymerization is dynamic and quite complicated, polymerization of monomer as well as degradation of polymer occurs concomitantly

    一、實現了無常規化學引發劑存在下的超聲輻照引發丙烯酸正丁酯( ba )間歇乳液聚合,制備了pba納米粒子,在11min內轉化率達到90 ,分子量達5 . 24 10 ~ 6 ,隨反應時間的延長而降低,表明超聲輻照引發乳液聚合是一個動態的復雜過程,單體的聚合和聚合物的降解同時發生。
  3. Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature. polymers with high yield and high molecular weight were obtained. their structures were characterized by uv, ir, nmr and gpc, respectively. the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region. the relation between fluorescence and polymer structure was studied. the results showed that the molecular chain structure has great influence on fluorescence of the polymers. the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength. the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength, and different emission sites in molecular chains and low emitting yield are shown. the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers

    文摘:使用有機金屬銠、金屬鎢/四苯基錫催化劑體系聚合苯乙炔,分別獲得了高產率和高分子量的聚苯乙炔.使用uv , ir , nmr , gpc等分別對聚合物結構進行了表徵.採用不同波長的激發光對聚合物熒光性能進行研究,詳細分析了聚合物結構與熒光性能之間的關系.研究結果發現,不同聚合物結構對聚合物熒光性能產生很大影響,規整性高的聚合物,將有較高的發光量子效率;聚合物規整性差,將可能導致多個熒光發光結構點,其熒光強度降低.聚合物熒光光譜研究將對某些共軛聚合物結構的規整性分析提供一些有用的信息
  4. The designs of composite material using inorganic filling compounds to reinforce ultra high molecular weight polyethylene ( uhmwpe ) and an improvement on thermal conductivity of polymer working as tribological material were selected as the major research subject in this thesis

    本論文選擇無機填料改性超高分子量聚乙烯( uhmwpe )復合材料的材料設計和聚合物作為摩擦學材料時導熱性能、抗壓強度及抗蠕變性能的改進研究作為主要研究方向。
  5. The improvement in the determination of relative molecular weight of high polymer by using viscosimetry

    粘度法測定高聚物相對分子質量方法的改進
  6. Studies of reasons of success or failure in experiment of viscosity measurements to calculate relative molecular weight of high polymer

    粘度法測高聚物相對分子量實驗成敗探討
  7. The results show that compared with the intermittent polymerization, the semi - continuous polymerization can greatly improve the reaction rate, and polymer with high relative molecular weight can be easily obtained

    研究表明:與間歇式聚合相比,採用雙螺桿擠出機進行半連續化聚合可以大大加快反應完成的速度,同時還容易制得相對分子質量較高的聚合物。
  8. The result shows that aerobic produced water, increasing polymer concentration and using high molecular weight polymer can increase the viscosity of polymer solution with produced water

    結果表明,污水暴氧、提高聚合物濃度及採用超高分子聚合物,可有效提高污水聚合物溶液的粘度,是保證污水注聚的有效手段。
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