查询词典 monomer

When feeding with undecylenic acid by fed-batch culture, there was a lag time when microorganism using undecylenic acid as a new carbon source. The molar fraction of unsaturated monomer could be achieved by 37.39% at 73 hr cultivation. We can see the property of PHA become flexible with cultivation time by the lower of Tg.

发酵槽馈加十一烯酸培养实验，产物为PHO与PHU(poly-3-hydroxy-8-noneneoate为主)所形成之混掺物，且双键所占比例随时间增加，培养第73小时可得到双键比例37.39%；随培养时间增加，玻璃转移温度(Tg， glass transition temperature)由-34.03℃下降至-42.40℃，显示PHA性质变得更加柔韧具有弹性。

In order to reflect the catalyst deactivation during the oxidative polymerization and difference of the reactivity between monomer,the oligomer soluble in water,and the oligomer unsoluble in water,a new heterogeneous kinetic model was proposed according to Flory statistical theory.It was found that the polymerization rate estimated by the new model was consistent with the calculated data.

根据DMP氧化聚合过程中催化剂随时间延长而逐渐失活，不同种类的苯氧阴离子活性不同以及非均相聚合特点，提出了水介质中DMP氧化聚合动力学模型，并采用多元非线形回归计算得到模型参数，采用模型计算得到的聚合速率与实验测定值一致，证明所提出模型的正确性。

In solution, the vanadyl or copper Pc with alkylamido group in 2 or 3- position exist mainly in the form of aggregate, and the others exist mainly in monomer.

和在溶液中不同，化合物在纯固体薄膜状态下都是主要以聚集体形式存在。

The relationship between the ratio of intensity of the third vibronic band to that of the first vibronic band in pyrene monomer fluorescence spectrum and its environmental polarity is used to probe the effects of alkali-metal chlorides MCl(M+= Li+, Na+, K+) on the microenvironment of b-cyclodextrin cavity.

基于芘的单体荧光光谱振动结构与其所处环境极性的相关性，研究了碱金属氯化物对β-环糊精空腔微环境的影响。

Vinylene carbonate ,a novel monomer and dienophile, can be used for various applications.

碳酸亚乙烯酯是一种新型的单体和亲二烯体，它的用途非常广泛，可以作为锂离子电池电解液的添加剂，还可以作为一种表面涂层的组分。

Another aspect of the invention is a method for preparing a polymer by obtaining and then subjecting to polymerization conditions, a vinylic monomer having formula (4), where R1 to R6 are as defined above.

另一个方面的发明，是一个法制备聚合物获取，然后服从，以聚合条件， vinylic单体后，公式（ 4 ），其中R1的，以r6是如上所确定的。

The silk fabric s were ingrafted with acrylamide monomer by the radiation of Co-60γradial and then were coordinated by polysaccharid and citric acid solution in order to improve its capability of withstandingness of crease.

以丙烯酰胺为接枝单体，在Co-60γ射线辐照条件下对真丝织物接枝改性，再用壳聚糖柠檬酸溶液对真丝织物复合整理以改善其抗皱性能。

The silk fabric s were ingrafted with acrylamide monomer by the radiation of Co-60γradial and then were coordinated by polysaccharid and citric acid solution in order to improve its capability of withstandingness of crease.

结果表明，在最佳工艺条件下，一缩二乙二醇甲基丙烯酸双环氧化物产率可达到73.4%；经其整理的真丝织物折皱回复角、强力均有提高，但对织物白度有一定影响

The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.

运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素，结果表明，自组装胶束的形成机理受制备方式的控制，胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大，随着有机溶剂的水溶性的增强而减小；采用透射电镜观察胶束的形态结构，发现胶束呈具有核壳结构的均匀球形；采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度；通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能，发现与PELLA和PEDLLA的相比，PECL 降解速率较慢；随着共聚物中疏水嵌段含量的增大，纳米分散液的稳定性逐渐下降；PEG含量高的PEDLLA纳米分散液随着温度的升高，纳米分散液的粘度先下降然后增大，反之，没有规律性，且随着电解质Na 2SO 4浓度的增大，体系粘度增大。

The SPC-2S fraction with 30% EtOH were constituted epicatechin and epicatechin gallate ester ;The SPC-2S fraction with 50% EtOH contained epicatechin and dimeric procyanidins, another SPC-3S contained epicatechin ,dimeric procyanidins and trimeric procyanidns ;Dimeric procyanidins and trimeric procyanidns constitute SPC-5S fraction;monomer dimer trimer tetramer pentamer of procyanidins were the major fractions in 70% acetone elute solution.

1和 2.01：1，也以添加0.1%SPC酒样中两者的比例最为协调；对小曲酒中酸的影响表现为，添加SPC后有利于降低酒样中乙酸的含量，各酒样中乙酸的量随着SPC添加量高粱外种皮中原花青素及其对小曲白酒挥发性成分影响机制研究的增加而降低；对醛类的影响为，添加SPC可降低酒样中糠醛的含量，其中以添加 0.1%SPC酒样中含量最低，为对照组的39.3%，而4个酒样中乙醛含量则无明显差别；低SPC添加量有降低酒样中杂醇油含量的趋势。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新