多羟基化合物

  • 网络Polyol;polyols;polyhydroxy compound
多羟基化合物多羟基化合物
  1. 多羟基化合物有交联作用,可以较大幅度地提高HPAM溶液的黏度。

    The polyhydroxy compound , by crosslinking , can enhance obviously the viscosity of HPAM solution .

  2. 复合多羟基化合物与柠檬酸钠配合使用可延长MO4000体系的成胶时间,提高凝胶的热稳定性。

    To reunite polyhydroxy compound and sodium citrate can prolong the gelation time of MO4000 system and raise thermal stability of gel .

  3. 用多羟基化合物作成胶剂与交联剂BF配制了选择性堵水剂。

    A selective plugging agent was prepared from polyhydroxy - compound as gelling material and cross - linking agent BF .

  4. 利用多羟基化合物与硅烷偶联剂的协同作用对纳米TiO2进行改性处理,制备出高浓度稳定性的纳米TiO2水性分散浆。

    Well-dispersed nano-sized TiO2 slurry in water medium with high concentration was prepared through the coordination action using silane coupling agent and multi-hydroxy compound .

  5. 糖类是多羟基化合物,合成1需要进行羟基的选择性保护,以便在7-OH定位连接没食子酰基。

    Selective protection of hydroxyl groups is a precondition for the synthesis of 1 , in order to specifically connect a galloyl group at 7-OH of sedoheptulose .

  6. 硼酸与多羟基化合物配位反应的热化学研究

    Thermochemistry Studies of the Coordination Reaction of Boric Acid with Polyhydroxy Compounds

  7. 硼酸与多羟基化合物的反应及硼选择性树脂

    Reaction Between Boric Acid and Polyhydroxy Compounds and the Developments of Boron-Selective Resins

  8. 收敛法合成章鱼形多羟基化合物

    Synthesis of Octopus polyols in convergent approach shape shadow

  9. 色氨酸合成酶的酶的活性增强,加入多羟基化合物。

    The enzymatic activity of tryptophan synthase was enhanced by adding polyhydroxy compounds .

  10. 多羟基化合物化学发光分析新体系的研究&尿液中尿酸的测定

    New Chemiluminescence Reaction System for Analysis of Polyhydroxy-compounds & Determination of Uric Acid in Urine

  11. 天然多羟基化合物在酶催化下的选择性酯化

    Enzyme-catalyzed Regioselective Esterifications of Polyhydroxylated Natural Products

  12. 通过改性前后纳米材料的微观性能表征,探讨了多羟基化合物与硅烷偶联剂在改性中的协同作用,并对协同机理进行了研究。

    The coordination action and mechanism was discussed by characterizing the microstructure of the modified TiO2 .

  13. 本文采用三种醇作为模型,研究了多羟基化合物在水溶液中与蛋白质模型分子的相互作用。

    Three alcohols were used as a model to study the polyhydroxy compounds in water molecules interact with proteins .

  14. 制备了基于壳聚糖和多羟基盐类化合物的凝胶给药系统,研究了其柱状凝胶和球状凝胶的制备以及其温度和pH双重感应性。

    Hydrogel drug delivery systems based on chitosan / polyol salt combinations were prepared with cylindrical and spherical shapes , and their thermo - / pH-sensitivities were investigated .

  15. 茶多酚(Teapolyphenols,TP)是茶叶所含的一类多羟基类化合物的总称,具有抗氧化、抑菌、防癌、降低胆固醇等多种保健功能和药理效应。

    Tea polyphenols ( TP ), which is the generic terms of compounds with multiple hydroxyl groups in tea , has many functions of heath care and pharmacological effects , such as antioxidation , bacteriostasis , cancer-preventing , and cholesterol-lowering .

  16. 以三聚氰胺、磷酸三甲酚和聚磷酸铵为氮源和磷源,研究了磷和氮两种元素对天然多羟基高分子化合物-淀粉的热降解成炭行为的影响;

    The effects of Phosphorus and Nitrogen in melamine , phosphate ester and ammonium polyphosphate on char formation of starch under the air condition was studied .

  17. 多羟基芳香族化合物对HIV-1整合酶的抑制作用多羟基黄酮醇类化合物的合成

    Studies on the inhibition of polyhydroxylated aromatic compounds against HIV-1 integrase

  18. 淀粉是一种多羟基有机高分子化合物。

    Starch is an organic high polymer chemical compound with many hydroxyls .

  19. 茶叶中一般含有20%~30%的多羟基酚类化合物,茶多酚可用作食品抗氧化剂。常用离子沉淀提取法、树脂吸附分离法、有机溶剂萃取法提取。

    Ed with ion precipitation abstraction metod , resin adsorption stripping method and organic solvent extruction method .

  20. 本文针对双氰胺固化环氧树脂时的固化温度高,固化产物耐湿热性差的缺点,利用自行合成的咪唑盐和多羟基酚类化合物,对双氰胺固化体系进行了改进。

    In this paper , a imidazole-salt was synthsised and was used with a polyphenol compound to modify the dicyandiamide curing epoxy resin system .

  21. 发现稳定剂的结构规律是多羟基和多羧基化合物的合理组合。

    The structure regulation of stabilizer is a suitable combination of multiplehydroxyl compound and multiple-carboxyl compound .

  22. 通过氯甲基甲醚保护相应醛、酮的酚羟基先合成查尔酮,进而方便地制备多羟基黄酮或异黄酮化合物。

    Methoxymethyl chloride was used as a facile protecting group for free hydroxyls in the preparation of polyhydroxy derivatives of chalkones , flavones and isoflavones .

  23. 多羟基聚合物防塌剂CXC-1是以环氧化物及多羟基化合物共聚而成的聚合物防塌剂,为淡黄色黏稠液体。

    Multi-hydroxyl polymer , CXC-1 , as an anti-sloughing agent for water base drilling fluids , is a yellowish liquid and is prepared by polymerization of alkylene oxides and polyhydroxylated compounds .