查询词典 polyesters

Recent development in functionalization of biodegradable polyesters and the improvement of their hydrophilicity is reviewed in the present paper from aspects of functional monomer and macromolecule reaction, respectively.

从功能化单体的共聚和大分子反应两个角度对近年来生物降解型聚酯的功能化及其亲水性改善方面的工作进展进行了综述。

The mattress and bumper inserts could be made of polyesters.

床垫和保险杠插入可以作出聚酯。

Processes for producing aromatic monomers useful for forming polyesters are disclosed.

公开了制备用于形成聚酯的芳香族单体的方法。

The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN.

聚酯链段包括典型的制瓶和包装用聚酯如PET和PEN得到的链段。

The related literatures on toughening of thermosetting resins as well as unsaturated polyesters have been reviewed systematically and the outline of this dissertation was summarized in detail.

综述了热固性树脂及不饱和聚酯的增韧研究发展以及存在的问题，提出了本论文的研究思路、研究目标和内容。

It is converted to a series of polyamides and polyesters by means of low-temperature solution polycondensation and interfacial polycondensation.

以间二甲苯和多聚甲醛为原料合成了芳香性螺双内酯单体――5，5′-二甲酰氯-7，7′-二氧-2，2′-螺双，并通过常温溶液缩聚和界面缩聚合成了一系列聚酰胺和聚酯。

PBS, as a fully biodegradable polymer with relatively low cost and higher melting point, can also be used to modify other polyesters.

PBS作为一种全降解、高熔点和低成本的聚酯，可用于改良其它聚酯。

Synthesis and Properties of Hyperbranched Azo Polyesters and Conjugated Polymer Containing 1, 3, 4-oxadiazole Unit

论文标题：偶氮超支化聚酯和1，3，4-噁二唑共轭聚合物的合成及性能研究

This procedure is performed by a doctor and only takes a few minutes. The specificity of these polyesters is that they can be hydrolyzed; in other words, broken down by water, which is unlucky for them, as our bodies are full of this substance.

这些聚酯的特殊性在于它们可以水解，换句话说，就是可以杯水破坏，如果超过一周，一个月或者三个月，这要依据它的类型和它所包含的要释放的活性物质。

Our heating element is translucency carbon film between two polyesters.

我国碳加热元件是半透明聚酯薄膜之间。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。