查询词典 polyesters

Some biodegradable polymers such as polyesters hae already been employed as excipients in pharmacology.

一些生物可降解聚合物，例如聚酯，已经作为辅料应用在药理学中。

In contrast to aliphatic polyesters, detrimental acidic compounds are not released upon degradation of PTMC and PDTC.

与脂肪族聚酯不同，PTMC、PDTC降解时，不会产生有害的酸性化合物。

Aliphatic polyesters present excellent degradation properties,with degradation by-products harmless to the environment and animal body.

多种脂肪族聚酯都具有良好的水解性质，降解产物对环境和生物体没有毒性，应用前景广阔。

Aliphatic polyesters, one of most promising biodegradable polymers, have been studied extensively and intensively due to their good biocompatibility and biodegradability, and they have found their applications in the fields of biomedical materials, drug delivery systems, packaging materials, agriculture, and so on.

脂肪族聚酯具有良好的生物相容性和可生物降解性，在生物医用、药物传输、包装、农业等领域得到了广泛而深入的研究，是一类极具发展前景的高分子材料。

Sucrose palmitates, sucrose laurates and sucrose oleates were also prepared form the solvent-free process. In addition, changes in the proportion of mono-, di- and polyesters in reaction process were monitored by HPLC-ELSD.

此外，用HPLC-ELSD对反应过程中体系单酯、二酯和多酯的变化进行了跟踪研究，对反应过程中各糖酯成分的变化原因进行了初步的探讨。

The results of FT-IR 1H-NMR indicate the structure of polyester, and the 13C-NMR analysis of three quaternary carbon showed the existing of hyperbranched struscture, MALDI-TOF MS showed the hyperbranched polyester structure, the degree of branching of the polyesters determined by 13C-NMR being 0.408. The esterification reaction kinetics followed a second-order equation and the reaction rate was controled by the concemtration of carboxyl group and hydroxyl group,-d/dt=K.

以IR、1H-NMR证实了聚酯结构的存在，13C-NMR谱图上3种季碳的特征峰有力证实了超支化分子结构的存在，MALDI-TOF MS证明了超支化聚酯的成功合成，并计算超支化聚酯的支化度为0.408；探讨并建立了超支化聚酯的缩聚反应动力学方程－d/dt=K，该缩聚反应属于二级反应，反应速率由羟基浓度和羟基浓度共同决定。

In addition to the familiar fibres and films (e.g., Dacron, Mylar), polyesters are used to make reinforced plastics, automotive parts, boat hull s, foams, laminates, tapes, piping, bottles, disposable filters, encapsulations, and coatings

除了熟悉的纤维和薄膜外，聚酯还用来制作增强塑料、汽车零件、船壳、泡沫塑料、层压制件、磁带、管道系统、瓶子、容易处理的滤布、封装用料以及涂料。

In addition to the familiar fibres and films (e.g., Dacron, Mylar), polyesters are used to make reinforced plastics, automotive parts, boat hulls, foams, laminates, tape s, piping, bottles, disposable filters, encapsulations, and coatings

除了熟悉的纤维和薄膜外，聚酯还用来制作增强塑料、汽车零件、船壳、泡沫塑料、层压制件、磁带、管道系统、瓶子、容易处理的滤布、封装用料以及涂料。

In addition to the familiar fibres and films (e.g., Dacron, Mylar), polyesters are used to make reinforced plastics, automotive parts, boat hulls, foams, laminate s, tapes, piping, bottles, disposable filters, encapsulations, and coatings

除了熟悉的纤维和薄膜外，聚酯还用来制作增强塑料、汽车零件、船壳、泡沫塑料、层压制件、磁带、管道系统、瓶子、容易处理的滤布、封装用料以及涂料。

In addition to the familiar fibres and films (e.g., Dacron, Mylar), polyesters are used to make reinforced plastics, automotive parts, boat hulls, foams, laminates, tapes, piping, bottle s, disposable filters, encapsulations, and coatings

除了熟悉的纤维和薄膜外，聚酯还用来制作增强塑料、汽车零件、船壳、泡沫塑料、层压制件、磁带、管道系统、瓶子、容易处理的滤布、封装用料以及涂料。

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。