The effects of catalyst variety, co-catalyst amount, feedstock mole ratio, stabilizer amount and condensation temperature on carboxyl terminal group content of polytrimethylene terephthalate were studied.

  • 研究了催化剂种类,助催化剂用量,原料配比,稳定剂用量以及缩聚反应温度对聚对苯二甲酸丙二醇酯(PTT)端羧基含量的影响规律。
  • 来源:互联网摘选更新时间:2026-07-13 13:07:37

  • 重点词汇
  • terminaladj.致命的;患绝症的;不可挽回的;末梢的;
  • molen.鼹鼠;防波堤;痣;间谍;
  • andconj. 和;与;而且;于是;然后
  • ration.比,比率;比例;系数;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • carboxyln.羧基;
  • feedstockn.给料(指供送入机器或加工厂的原料);进料;
  • amountn. 量,数量;总额;本利之和;全部效果,全部含义;
  • onprep. (覆盖、附着)在…上;由…支撑着;在(运输工具)上;在(某一天);就在…之后;关于(事或人);(身上)带着;为(某团体或组织)的一员;吃;(表示方向)在,向,对;在,接近(某地);根据;以…支付;通过;与…相比
  • 相关例句
1、

The applications of NMR in the study of chemical structure, configuration, conformation, terminal group and heterogeneous system, as well as the development prospect of NMR were reviewed with 34 references.

综合评述了用NMR研究橡胶化学结构、构型、构象、端基和多相系统的情况,以及发展前景。

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2、

The change of intrinsic viscosity and carboxy terminal group content was studied for polylactic acid ( PLA) at 10-40 min and 170-200 ℃.

研究了聚乳酸(PLA)在10-40min和170-200℃的条件下热降解后的特性粘数和端羧基含量的变化。

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3、

The central group identifies the linear structure of liquid crystal molecules, and the terminal group plays a major role in the dielectric liquid crystal materials, optical and other anisotropy nature.

其中,中央基团确定了液晶分子的线状结构,而末端基团则对液晶材料的介电、光学和其它各向异性性质起主要作用。

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4、

Trace water in the initiator system is an important factor which affects the initiating terminal group structure and the performance of the random copolymer of ethylene oxide and propylene oxide.

引发体系中的微量水分是影响环氧乙烷环氧丙烷无规聚醚起始端基结构,并进一步影响其分子量和使用性能的重要因素。

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5、

Connection Skill for Three-phase Transformer Terminal Group

三相变压器接线组别的连接技巧

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6、

Study on Polyamides. Synthesis of Open Chain Ether with Pyridine as Terminal Group

多酰胺化合物的研究Ⅶ.吡啶端基开链冠醚的合成

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7、

Synthesis of open chain crown ethers with p-chloroaniline as terminal group

对氯苯胺为端基的酰胺型开链冠醚的合成

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8、
9、

Effect on Combustion Heat of Saturated straight-chain paraffin with Terminal Group

端基对饱和直链烃燃烧热的影响

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10、

Study on synthesis of liquid polysulfide rubber by terminal group conversion reaction

端基转化法合成液态聚硫橡胶研究

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11、

Then the HN fragment was inserted into the 3 ′ terminal of SOC gene of pSOC plasmid.

将该片段克隆至pSOC质粒SOC基因3′端,成功构建了重组质粒pSOC HN。

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12、

Cloning and characterization of 3 ′-terminal of arom gene from sclerotinia sclerotiorum

核盘菌(Sclerotinia Sclerotiorum)arom基因3′-末端的克隆与分析

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13、

Fusion protein encoded by carboxyl terminal gene sequence was purified through glutathione agarose column.

对表达的羧基端序列编码的融合蛋白过谷胱甘肽琼脂糖柱进行纯化。

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14、

Thirdly, this paper put forward a fuzzy control method of dynamic dispatching automated guided vehicle on automated container terminal and carried out function design of container terminal fuzzy control and made an example as an explain on the base of fuzzy control system theory.

然后,以模糊控制系统理论为基础,提出了集装箱自动化码头AGV动态调度的模糊控制技术实现方法,进行了码头调度模糊控制功能设计,并以实例加以分析说明。

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15、

This paper describes the realization and design of vehicle location terminal with the powerful function of ARM, and the system model and design project are also introduced in detail.

对系统的模型和设计方案作了较为详细的介绍,重点描述了如何利用ARM实现车载定位终端。

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16、

Three-dimensional structure prediction showed that this protein has spherical structure domain, while the structure of its N terminal make an important function in regulation function.

三级结构预测表明,该蛋白C端为球状结构域,而N端结构对其发挥调控作用起重要作用。

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17、

This paper proposes an embedded Linux-based intelligent telephone information terminal that integrates computing function with telephone function seamlessly.

提出了一个基于嵌入式Linux系统的智能电话信息终端,将计算功能和电话功能有机地结合起来。

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18、

And what I calculated was the terminal velocity as a function of radius of these ball bearings.

我计算的是终端速度,作为这些钢珠的,半径函数。

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19、

Research of Key Production Strategies Based on the Environmental Friendly Coal Terminal with the Professional Function of Coal Blending

基于专业配煤功能的环保型煤炭码头关键生产策略研究

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20、

An integrated load management mode for large customers is proposed. The structure of an actual load management system, the features of its data acquisition terminal and the function of its master station are presented.

文章提出了大客户负荷集成管理的模式,并介绍了一个实际的负荷管理系统的结构及其数据采集终端的特点和主站的功能。

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