查询词典 polymer

The researches show that polymer PM5MPP and copolymer M5MPP/MMEANB are enantiotropic liquid crystalline polymers, but polymer PMMEANB has no liquid crystalline properties....

结果表明，均聚物PM 5MPP及共聚物(M 5MPP/MMEANB)属双向液晶高分子；PMMEANB属于非晶性高分子。证实了分子间吸电子与给电子基团相互作用有利于提高液晶高分子热稳定性，共聚物(M 5MPP/MMEANB)具有较宽的液晶相温度范围。

As a new composite material, conducting polymer composite film has electrical and optical properties of metal and inorganic semiconductor and flexile mechanical performance and processibility of organic polymer as well as electrochemical redox activity.

摘要导电聚合物复合膜作为一类新颖的复合材料，既具有金属和无机半导体的电学和光学特性，又具有有机聚合物柔韧的机械性能和可加工性，还具有电化学氧化还原活性。

As a new composite material, conducting polymer composite film has electrical and optical properties of metal and inorganic semiconductor and flexile mechanical performance and processibility of organic polymer as well as electrochemical redox activity.

导电聚合物复合膜作为一类新颖的复合材料，既具有金属和无机半导体的电学和光学特性，又具有有机聚合物柔韧的机械性能和可加工性，还具有电化学氧化还原活性。

In this paper,the recent progress in crosslinkable polymer and hyperbranch ed polymer and their application in NLO material based on fluorene have been reviewed.

对于聚合物在有机电子学方面应用的飞速发展，本论文综述了基于芴的可交联、超支化聚合物在OLED中的应用以及聚合物的非线性性能，并提出在这些领域中需要解决的问题。

Polyaspartic acid is easily ring-opened to form polyaspartic acid derivatives with a side chain founctional group.The second component can be added into aspartic acid by copolymerization to improve polarity and crystallization of primary polymer,and can make primary polymer without reactive group functionalize.

聚天冬氨酸是近几年来在全球销量日增的绿色化学品，由于它具有类似蛋白质的酰胺键结构，是一种生物可降解材料[1-2]，最终可降解成水和二氧化碳，具有良好的生物相容性，对环境友好。

In this study, we first synthesize a conducting polymer, P3HT, via Grignard metathesis method. And we functionalize the polymer chain end of P3HT into vinyl group. After characterize from 1H NMR spectroscopy, we use the end functionalized P3HT to proceed coupling reaction with P2VP anion.

为了达到这个研究目的，我们先利用格林纳置换法合成导电高分子P3HT，并将其尾端乙烯化，在经核磁共振仪确定结构后，利用此尾端乙烯化之P3HT与P2VP阴离子反应进行接合。

YTY paper reinforcement of the recently developed a new water soluble polymer material, it is a high molecular weight polymer compound ionictype, mechanim, numberrepresentationof exesting non－ionic, and numberrepresentationof anions and cations, so this in paper-making process, you can and pulp fiber molecules multi-spots adsorption, which increases the fine celluiose filler and retention; at the same time it can also promote hydrogen between cellulose, and gives the paper jiantiao dry strength significantly increase, because the reinforcement of the unique structure, so it can be used with other paper cocatalyst compouding, a broad pH range as a reinforcement of the paper is available at wood pulp and wood pulp-straw gamasid mixed pulp and paper pulp etc.

YTY纸张补强剂系近期研制成功的新型水溶性高分子材料，它是一种高分子量复合离子型的高聚物，在其分子结构中，既有非离子基团，还有阴离子、阳离子基团，因此这在造纸过程中，可以与纸浆中的纤维分子形成多点吸附，从而提高填料与细纤维素的留着率；同时它还可促进纤维素分子之间的氢健作用，使纸张干强度明显提高，由于该补强剂分子的独特结构，因此它可与其它造纸助剂复配使用，能在较宽广的pH范围内，作为纸张补强剂，可以在木浆、木浆——草浆混合浆、革浆等多种纸浆中使用。

Specific drug–polymer interactions are engineered by optimizing the lactide to glycolide ratio and including specific polymer end groups.

通过优化丙交酯与乙交酯比例及加入特殊的聚合物末端基来获得特殊的药物-聚合物间相互作用。

The synthesized PCU was then characterized by infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, small-angle X-ray scattering, and tensile strength measurement. The IR showed that the polymer synthesized by the above two methods both have the polycarbonate-urethane structure and the tensile measurement showed good mechanical performance of the polymer. The DSC and TGA data showed that there is an obvious soft-hard glass transition area, which indicated the existence of the micro-phase separation structure. The extent of the phase separation was affected by the ratio of starting materials, the molecular weight of PCD, and the polymerization method. The decomposition upon heating was observed in two steps. SAXS result showed that the radius (r_2), the distance between domains (d_2), and gyral radius (R_2) of hard segment micro-domain were fairly affected by the starting materials ratio and soft segment content.

IR结果表明两种方法合成的聚合产物均具有聚碳酸酯聚氨酯的结构；拉伸实验表明聚合产物具有良好的力学性能；DSC、TG结果表明，聚合物呈现出较为明显的软硬段玻璃化转变区，表明存在微相分离的结构，相分离的程度受原料配比、软段分子量、聚合方法的影响，其热分解分为明显的两个阶段； SAXS结果表明，聚合物原料配比、软段含量的变化对硬段微区回旋半径R_2，微区间距d_2，微区半径r_2影响不大其值分别为9.5(A|°、29、7.4，但对软段的微区半径及间距影响较大，随着软段含量的增大，软段微区的半径r1和间距d1都增大。

If monomer passes atom to transfer freedom radical group above all reacts, attainable extreme contains haloid atomic polymer, and haloid and atomic itself can serve as the raw material that folds nitride, click reaction to come true to be transformed further to polymer structure to use thereby offerred a possibility, golas [10] did special overview for this.

假如单体首先经过原子转移自由基聚合反应后，则可得到末端含有卤素原子的聚合物，而卤素原子本身可以作为叠氮化物的原料，从而为采用点击反应对聚合物结构实现进一步改造提供了可能，Golas等[10]为此做了专门的综述。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！