二酯

èr zhǐ
  • diester
二酯二酯
二酯[èr zhǐ]
  1. 二酯和二醚类内给电子体的研究进展

    Progress of Research into Internal Electron Donor of Diester and Diether

  2. 钴(Ⅲ)配合物催化磷酸二酯水解的动力学和机理

    Kinetics and mechanism for hydrolysis of phosphate diester catalyzed by cobalt ( ⅲ ) complex

  3. 研究了在聚对苯二甲酸乙二酯(PET)基体表面化学镀Ni-P合金的工艺。

    The process of Ni-P alloy electroless plating on PET substrate studied comes to the following conclusions .

  4. Schiff碱过渡金属配合物催化磷酸二酯水解

    Hydrolysis of Phosphate Diester Catalyzed by Schiff Base Transition Metal Complexes

  5. 5′核苷酸磷酸二酯酮同工酶V和甲胎蛋白联检对肝癌诊断意义的评价

    Evaluation of the combined assay of 5 ' - nucleotide phosphodiesterase V and alpha fetoprotein in the diagnosis of primary hepatic carcinoma

  6. POE-g-MAH和PC协同增韧聚对苯二甲酸丁二酯的脆韧转变

    Brittle-to-Ductile Transition of Poly ( Butylene Terephthalate ) Synergistically Toughened by POE-g-MAH and PC

  7. 聚对苯二甲酸乙二酯(PET)主要用于纤维生产,而在非纤维领域的应用则主要是制造食品、饮料的包装容器及薄膜。

    Besides fiber production , polyethylene terephthalate ( PET ) is applied in food , beverages containers and packaging films manufacturing in large quantity .

  8. 采用等速升温DSC方法对单轴取向聚对苯二甲酸乙二酯(PET)的结晶过程进行了研究,发现单轴取向PET的冷结晶峰表现为多重结晶峰。

    The crystallization process of uniaxially oriented poly ( ethylene terephthalate )( PET ) was investigated by using DSC with a constant heating rate .

  9. 研究玻纤、阻燃剂和纳米成核剂对聚对苯二甲酸乙二酯(PET)结晶性能及力学性能的影响。

    The influence of glass fiber , flame retardant and nucleating agent on the crystallinity and mechanical properties of polyethylene terephthalate ( PET ) was investigated .

  10. 测量了一系列在TTg下存放(Sub-Tg存放)后的聚对苯二甲酸乙二酯(PET)薄膜的热释电流谱(TSC)。

    The Thermally Stimulated Current ( TSC ) spectra of a series of Sub-Tg annealed Polyethylene Terephthalate ( PET ) specimens have been measured .

  11. 用FTIR定量测定聚对苯二甲酸乙二酯晶区和非晶区反式构象含量

    Quantitative Measurement of the Trans Conformation Content of Crystalline and Amorphous Regions within Poly ( ethylene terephthalate ) by Means of FTIR

  12. 研究了热处理对聚丙烯(PP)/聚对苯二甲酸乙二酯(PET)共混体系结晶、熔融行为及力学性能的影响。

    The effects of thermal treatment on crystallization , melting behaviour and mechanical properties of polypropylene / polyethylene terephthalate ( PP / PET ) blends were investigated .

  13. 主要包括聚甲醛、聚酰胺、聚碳酸酯、ABS、聚苯醚、聚对苯二甲酸乙二酯、聚砜、聚醚砜、聚酰亚胺、聚苯硫醚等。

    Include polyoxymethylene , polyamide , polycarbonate , ABS , polyphenylene oxide , polyethylene terephthalate , polysulfone , polyether sulfone , polyimide , polyphenylene sulfide and so on .

  14. 在此基础上以荧光猝灭、荧光光谱、紫外可见光谱等技术系统研究了3种二酯与β环糊精(βCD)之间的主客体相互作用。

    Furthermore , the host-guest interactions of the esters with β - cyclodextrin (β - CD ) have been studied systematically by using fluorescence quenching , fluorescence spectroscopy and UV-Vis spectroscopy measurements .

  15. 聚对苯二甲酸乙二酯(PET)薄膜经固相缩聚反应后,用凝胶色谱法测定产物的分子量、分子量分布和环状齐聚物含量。

    Polyethylene terephthalate ( PET ) films were polymerized in solid phase , the molecular weight , molecular weight distribution ( MWD ) and cyclic oligomer content of the products were determined by GPC .

  16. 用~1H-和~(13)C-NMR方法研究聚对苯二甲酸乙二酯/聚一氧基苯甲酸酯共聚酯的序列分布

    A study on sequence distribution in pet / phb copolyesters by ~ 1h and ~ ( 13 ) c-nmr

  17. 探讨了含特殊功能基肟基的双核(Cu(Ⅱ)-Cu(Ⅱ)及Co(Ⅱ)-Co(Ⅱ))配合物催化磷酸二酯的水解。

    The hydrolysis of phosphodiester promoted by dinuclear complexes ( Cu ( II ) - Cu ( II ) and Co ( II ) - Co ( II )) bearing special functional oxime group has been studied .

  18. 采用自行研制的动态毛细管流变仪,研究了正弦脉动挤出流场对聚对苯二甲酸乙二酯(PET)结晶行为的影响。

    The self-made capillary dynamic rheometer was adopted to study the relationship between the crystallization behavior of poly ( ethylene terephthalate ) ( PET ) and the different vibration conditions in the sine pulsating flow field .

  19. 结果表明,中间体龙脑酰基二酯的最佳合成条件为:乙氧基镁丙二酸酯和D龙脑酰氯的物质的量配比为1∶14,反应时间为4h,反应温度为在乙醚溶液中回流;

    Results show that the optimal esterifying conditions are the ratio of 1 ∶ 1.4 and the reaction time of 4 h under reflux .

  20. 用微生物对涤纶丝和对苯二甲酸乙二酯(DTP)进行降解性能研究。

    The biodegradation of polyester ( PET ) fiber and diethylene glycol terephthalate ( DTP ) are studied in this paper .

  21. 用光学退偏振法和DSC方法研究了聚合过程的助剂磷酸三苯酯(TPP)对聚对苯二甲酸乙二酯(PET)结晶速率的影响。

    The influence of a polycondensation additive , triphenyl phosphate , on , the overall crystallization rate of PET has been studied by means of depolarized light intensity method and differential scanning calorimetry .

  22. 存10μm厚的聚对苯二甲酸乙二酯(PET)薄膜上涂有2μm厚的PU/SiO2杂化材料,体系的介电常数较纯PET薄膜提高1倍多。

    Compared with the pure polyethylene terephthalate ( PET ) film , the dielectric constant of the system comprising PET film in 10 μ m thick coated with PU / SiO2 in 2 μ m thick increases by 1 time .

  23. 目的:探讨Amadori糖化血清白蛋白对牛视网膜血管二酯酰甘油(DAG)&蛋白激酶C(PKC)信号级联的影响及d-α-生育酚的干预作用。

    Objective : To investigate the effect of Amadori glycated serum albumin ( AGSA ) on diacylglycerol-protein kinase C ( PKC ) cascade in cultured retinal blood vessels of bovine .

  24. 研究Ln3+化合物对聚对苯二甲酸乙二酯及其共聚酯合成反应的催化效果。

    The catalytic effects of Ln 3 + on synthesis of polyethylene terephthalate and its copolyesters were studied .

  25. 在180℃以上,DCB还将分解成酚和异氰酸,酚进一步与DCB反应生成碳酸二酯和氨;

    It decomposes to isocyanic acid and phenol which will further more react with DCB to produce dicarbonate and ammonia when temperature is up 180 ℃ .

  26. 结论磷酸硫代骨架的cpGODN具有导致动物死亡和诱导巨噬细胞大量释放细胞因子的作用,磷酸二酯骨架的cpGODN则无此能力。

    Conclusion CpG ODN with phosphorothioate backbone had the ability to induce macrophage to release cytokines strongly and led mice to die , but CpG ODN with phosphodiester backbone had not such ability .

  27. 在PET(聚对苯二甲酸乙二酯)产业快速发展和广泛应用的同时,PET的废弃物每年也会大量的产生。

    With the rapid development of PET ( Polyethylene terephthalate ) and its wide use in industry , there is a substantial fraction by volume added to the waste stream every year , which causes an environmental issue , since PET is highly resistant to atmosphere and biological agents .

  28. 方法手术切除16只羊的左、右后肢胫后肌腱各长3cm,用聚对苯二甲酸乙二酯复合毡型人工韧带替代。

    Methods Surgical resection and replacement of a 3 cm long posterior tibial tendon in both left and right hind limbs with artificial ligament were performed in 16 adult healthy sheeps .

  29. 分别以聚乙二醇(PEC)、聚已二酸丁二酯二元醇(PBA)及两者的混合物作软段溶液聚合合成了三种类型的聚氨酯酰亚胺(PUI)。

    Three typs of polyurethane-imides ( PUI ) were synthesized with polyethylene glycol ? poly ( butylene adipate ) glycol and the mixture of them as the soft segments respectively by solution polymerization .

  30. PETP聚对苯二甲酸乙二酯坚硬,刚度好,强度高,有韧性,摩擦系数小,尺寸稳定性高。

    PETP terephthalic acid ethyl ester together two hard , good stiffness , strength , toughness , and have high small friction coefficient , high dimension stability .