低聚物

dī jù wù
  • oligomer
低聚物低聚物
  1. 核磁和红外谱图表明乳液聚合产物是以PMMA为主长链,AMS和MAn低聚物为短链的嵌段共聚物。

    Based on FTIR and 1H-NMR , the emulsion polymerization product was block copolymer of PMMA and AMS-MAn oligomer .

  2. 综述了此低聚物在UV光固化涂料中提高金属表面附着力和具有阻燃特点的应用。

    The application of this oligomer in UV curing coatings for improvement of adhesion on metals and its fire retardancy are reviewed .

  3. 采用了红外光借(IR)对低聚物和预聚体进行了表征;

    FT-IR was employed to characterize oligomers and prepolymer .

  4. 热塑性聚氨酯弹性体主要由含OH的低聚物多元醇、小分子扩链剂和异氰酸酯等原料聚合而成。

    Thermoplastic polyurethane elastomers are prepared with polyol ester containing OH , isocyanate and a chain extender .

  5. 乙二醇二缩水甘油醚封端的PS遥爪低聚物的合成与表征

    Synthesis and characteristic of glycol diglycidyl ether terminated PS telechelic oligomer

  6. UV固化金属涂料用低聚物的合成及性能研究

    Study on the synthesis and properties of the polymer used for the UV-curable metal coatings

  7. 用水热法合成了Ga取代皂石(GaS)并用羟基铝低聚物与其交换制得了PGaS。

    Gallium-substituted saponite ( GaS ) was synthesized by hydrothermal method .

  8. 采用分离Cr(Ⅲ)低聚物,分别考察其与聚丙烯酰胺反应活性的方法,研究了Cr(Ⅲ)低聚物与部分水解的聚丙烯酰胺交联机理。

    The mechanism of the gelation reaction of chromium (ⅲ) oligomers with partially hydrolyzed polyacrylamide was investigated with rheological measurements .

  9. Fe(b)为过渡性低聚物,可逐渐与Ferron反应;

    Fe ( b ) appeared to include the transitional low polymeric species which reacted with ferron gradually .

  10. HRP催化对苯二胺合成苯胺低聚物

    Synthesis of polyaniline by HRP-catalyzed polymerization of p-phenylenediamine

  11. PTT环状低聚物的熔程为92.3~222.6℃,熔融后是无色、透明的低粘度液体。

    The cyclic oligomers melt at 92.3 ~ 222.6 ℃, providing liquids of low viscosity .

  12. 对PU和丙烯酸酯类废料是使其降解为单体或低聚物后,用作粘合剂或再聚合;

    PU and acrylics Wastes can be degraded into monomer or lower polymer , and used as adhesive agent or repolymerized ;

  13. HDPE经电子束辐照后产生部分降解,可生成少量分子量较小的氧化低聚物,这类低聚物的含氧比例较大。

    Electron beam irradiation causes the degradation of HDPE and some small molecules that contain many oxygen-containing groups are thus formed .

  14. 腈纶废水中含有难生物降解的低聚物和丙烯氰(PAN和AN)、二甲基乙酰胺(DMAC)和具有毒性的CN-。

    The acrylic fiber wastewater contained Dimethylacetamide ( DMAC ), toxic CN-and oligomer ( AN and PAN ) .

  15. 通过HPLC对原花青素低聚物进行了成分分析,结果表明,所提取的产品与原花青素标准品成分基本一致。

    The composition analysis of procyanidins low polymer by HPLC showed that the compositions of the extracted product were the almost same as the compositions of standard procyanidins .

  16. 实验结果表明,MALDI-TOF-MS是分析环状低聚物直观、准确、快速的分析工具。

    The experimental results show that MALDI-TOF-MS technique is a direct , accurate and rapid tool for the analysis of cyclic oligomers .

  17. 求解分子种类模型得到了反应过程中各种低聚物摩尔浓度随反应时间的变化,结果与HPLC分析相符。

    The species molar concentrations of oligomers formed in the reaction were obtained by solving the differential equations derived from the molecular species model , and the results are consistent with the analysis of HPLC .

  18. 实验结果表明,随着铁含量的增加、碱化度(B)的增大和熟化时间的延长,PAFC中铝铁的形态由低聚物向高聚物转化。

    The results showed that , with the increment of iron content , B and aging time , the species of PAFC changed form low polymer to high polymer .

  19. 采用溶液聚合法合成了以BA、AN为主链结构的液态含羧基丙烯酸酯低聚物,并用其对双酚A型环氧树脂胶黏剂进行增韧改性。

    Liquid acrylate oligomers containing carboxyl groups with BA and AN as main chain structure were synthesized by solution polymerization , and used for toughening modification of bisphenol A epoxy resin adhesive .

  20. 此外,PSF低聚物具有良好的加工性能,能与环氧体系形成均一的三维网络结构,未发生相分离现象。

    Furthermore , PSF oligomers have well processability , and can form homogeneous three-dimensional network with epoxy . The phase separation phenomena can not be observed .

  21. 用亚麻仁油和环戊二烯合成了改性亚麻仁油(NLO)光固化低聚物,其结构用红外光谱(FT-IR)进行了表征。

    Norbornene linseed oil ( NLO ) was synthesized using linseed oil and dicyclopentadiene , and was characterized by gel-permeation chromatography ( GPC ) and FT-IR .

  22. 结论:在实验过程中,Hb形成低聚物或单体,结构发生去折叠并伴随血红素基团的裸露。

    Hb , in such process , may produce low polymers or monomer , and binding of surfactants molecules induced the unfolding of Hb accompanied with exposure of the heme pocket .

  23. 探讨了UV涂料固化后初期黄变的主要原因;活性低聚物的结构对UV涂层固化初期黄变和长期耐候性能的影响;

    However , the main reason of yellow change of UV curing coating in the early stage was discussed , and the active oligomer have influence on UV coatings early stage yellow change and long time weather resistance .

  24. 以聚酯生产中产生的下脚料&乙二醇残渣(主要含PET低聚物)为原料,采用辛醇合并醇解、酯交换一步法工艺,合成了增塑剂DOTP。

    Plasticizer DOTP was prepared from ethylene glycol residue ( major component is PET low polymer ) using single step process in which alcoholysis and ester interchange were combined .

  25. 以BDB用作RAFT试剂进行苯乙烯和丙烯酸的本体共聚,制备具有自乳化功能的低聚物。

    Firstly , the RAFT BDB was used for preparation of styrene-acrylic acid RAFT oligomer by bulk polymerization , which has function a self emulsification .

  26. 以聚苯乙烯(PS)低聚物为相容剂,用熔体插层法制备SBR/有机蒙脱土(OMMT)纳米复合材料,并对其结构及性能进行研究。

    A SBR / OMMT nano-composite was prepared by using polystyrene low-polymer ( PS ) as compatibilizer through melting intercalation method , and its structure and properties were investi - gated .

  27. 血浆复钙试验测定R1和Rd的抗凝作用。使用复配低聚物降低轻钙碱度的研究

    The plasma recalcification test was used to determine the effects of R 1 and R d on anticoagulation . Research on Reducing Alkalinity of Light Calcium Carbonate with Built Low-Grade Polymer

  28. 采用加叔丁醇的方法对提高TBA选择性,降低异丁烯低聚物选择性更为有效。

    Relatively , the method of adding tert-butyl alcohol to acetic acid is more effective than Adding water in improving the selectivity of TBA and reducing the selectivity of isobutylene to polymers .

  29. 根据低聚物的上述结果外推得到聚合物的性质,并由此计算了聚合物的有效共轭长度(ECL)。

    Based on these results , the corresponding properties of the polymers were obtained by extrapolation . ECL ( effective conjugated length ) of the polymers was calculated by the regressive expression .

  30. 对淤浆法聚乙烯(PE)的生产过程进行了分析,探讨了低聚物产生的原因和进入产品后对PE性能的影响,论述了降低产品中低聚物含量和消除低聚物对产品性能影响的方法。

    The article analyzed the production process of slurry polyethylene ( PE ) and discussed the cause for forming low molecular polymer and its impact on the performance of the PE product . Measures were presented aimed at eliminating the existing problems in the production .