Biodegradable polyesters are polymer materials, they can be synthesized by chemical methods, enzymatic-catalysis and ferment.

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.

All polyesters have low phase transition temperature, they have good solubilities in common organic solvents.

所有聚酯均具有较低的相转变温度, 在普通的有机溶剂中具有较好的溶解性质.

Studies of CFC-free formulation for flexible polyether PU foam is described in this paper.

本文介绍聚醚型软质聚氨酯泡沫塑料 无氟 氯烃配方的研究.

Objective To explore the technique of the cooperation of nursing in auto-mixed polyether rubber impressions applying.

目的:探讨临床应用自动混合型聚醚橡胶制取印模时护理配合技巧.

The preparation methods for phosphazenium catalysts and their use in producing polyether polyols are described.

叙述磷腈类催化剂的合成方法及其在聚醚多元醇生产中的应用.

A blending polyether type polyurethane elastomer was prepared by blending polyoxypropylene ether glycol with polyterahydrofuran glycol.

采用环氧丙烷聚醚与四氢呋喃聚醚共混,研制出共混聚醚型聚氨酯弹性体.

Propylene glycol , glycerin, polyalcohol can be used as starting substances of polyether demulsifiers.

聚醚类破乳剂的醇类起始剂有丙二醇 、 甘油或多元醇.

The formulations of polyether polyurethane microcellular elastomers for shoe sole are studied.

研究了聚醚型聚氨酯微孔弹性体鞋底原液的配方.

The time domain dielectric spectroscopy for polyethylene terephthalate ( PET ) film and glass samples is studies.

对涤纶 ( PET ) 和玻璃的时域介电谱进行了研究.

This paper introduced that maleic anhydride can be grafted with rosin, polyethylene wax, styrene, petroleum resin.

主要介绍了马来酸酐与松香 、 石油树脂 、 苯乙烯 、 聚乙烯蜡等的接枝反应.

Finally, the effect of chain structure and solid state of chlorinated polyethylene on chlorosulfonation was discussed.

还讨论了氯化聚乙烯的链结构和固态结构对氯磺化反应的影响.

This paper discusses the chemical modification of low density polyethylene with siloxane by grafting.

为改善聚乙烯电缆料在高电场下的老化性能,用显微镜观察并拍照等方法研究了不同聚硅氧烷接枝量对改性低密度聚乙烯的结晶形态、性能及机械性能等的影响.

The shirts will be packed each in a polyethylene bag, five dozen to a cardboard case.

每件衬衫装一塑料袋, 五打装一硬纸板箱.

Polyethylene is an excellent barrier to water vapor.

聚乙烯保水蒸汽的性能良好.

The performances of chloride polyethylene rubber and its uses in automobile rubber tubes are stated.

本文叙述了氯化聚乙烯橡胶的性能及其在汽车胶管中的应用.

Jacket: Black low mid or high density polyethylene.

护套: 黑色低密度或中密度或高密度聚乙烯.

The melting behavior of ultrahigh relative molecular weight polyethylene ( UHMWPE ) fiber was studied by DSC.

用DSC法研究了超高相对分子质量聚乙烯 ( UHMWPE ) 纤维的熔融行为.

Analysis result shows that the ultrahigh molecular weight polyethylene has a broad application prospect.

认为超高分子量聚乙烯在化工领域有着广泛的应用前景.

Objective : To study the polysaccharide's content in the different Polygala tenuifolia Willd resources from Shanxi.

目的: 研究山西道地药材晋产远志品种资源多糖类含量.

The teen escaped from a polygamist community.

那位青少年逃离了某个一夫多妻的社区.