查询词典 poly

Results Al i phatic polyester, polyanhydride, polyurethane and poly were the most extensively studied synthetic biodegradable polymers as bone substitutes and the scaffolds.

结果 目前作为骨修复替代和骨组织工程支架材料研究较多的人工合成可降解聚合材料包括脂肪族聚酯、聚氨酯、聚酸酐和氨基酸聚合物。

Photophysics and electroluminescent characteristics of poly, copolymers from silafluorene and fluorene and copolymers from silafluorene and phenylene are systematically studied.

系统研究了宽带隙共轭聚合物聚硅芴、硅芴与芴共聚物、硅芴与苯撑共聚物的光物理特性和电致发光特性，探索了提高器件性能的途径。

The internal and external development of p -aromatic polyamide fiber , particularly poly ( p -phenylene tereph-thalamide) fiber, was introduced from the aspects of fiber varieties, output, properties and advanced composite materials reinforced with this fiber.

介绍了对位芳香族聚酰胺纤维特别是聚对苯二甲酰对苯二胺纤维的国内外发展情况，包括纤维品种、产量、性能和该类纤维作为先进复合材料骨架的发展情况。

From comparison with poly(2,7-fluorenylene), the 1,2-bis( p -phenylene)-1-cyanovi- nylene unit was found to be a good electron-withdrawing moiety for electronic materials and the incorporation of 1,2-bis( p - phenylene)-1-cyanovinylene resulted in a narrow band gap and a red shift of both the absorption and photoluminescence emission peaks.

通过与聚芴对比，发现对于电致发光材料来说，由于氰基的强吸电子能力使得氰基亚乙烯基成为一个很好的吸电子基团，与之结合使得能隙变窄，吸收和发射光谱发生红移。

Syntheses of PPVs derivatives with alkoxyl as side-chain by the method of dehalogenating condensation reaction Those PPV derivatives, named poly (2-methoxy-5-alkoxyl) phenylene vinylene,containing alkoxyl on benzene ring, were placed on emphasis in this paper.

一。通过强碱诱导的去卤缩合法合成支链含不同烷氧基的PPV衍生物本文首先重点研究了支链中含不同链长烷氧取代基的PPV衍生物：聚(2-甲氧基-5-烷氧基)对苯乙炔。

Especially, there exist polymorphism for poly s with para phenylene linkages, since the metastable crystals can be obtained under a certain of crystallization conditions.

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Soluble PANt (=0. 49dl/g) in NMP was used tocopolymerize with -COCI terminated low molecular weight poly- to - phenylene terephathalamide. Through elemental analysis the molecular wd...

我们还用聚苯胺（［η］＝0.49dl／g）与－COCI封端的果对苯二甲酰对苯二胺进行嵌段共聚，经过产物的元素分析与计算结果比较，确定出特性黏数为0.49dl／g的聚苯胺平均分子量。

Then we tested the photosensitivity of POF whose core material was copolymer of azo-benzene and poly in experiment.

其次，对含偶氮苯和聚甲基丙烯酸甲酯共聚的纤芯材料的聚合物光纤光敏特性进行了实验测试。

Using a new poly piezoelectricity gauge,the real-time measurement of pressure of the laser-induced shock wave is realized.

为了提高利用激光冲击波改进材料性能的技术，采用响应快、测量范围大的绝缘膜组合式高聚物压电传感器和示波器对激光诱发的冲击波进行了研究。

There are six kinds of fatty acid in the grey green pilius and mycelia. The content of setearic acid in fruitbody is high ,which is 56.10% of the total fatty acid . The poly-unsaturated fatty acid is 56.07% of the total fatty acid in the mycelia .higher than Rivinosa and peanut . The fruitbody of L.deliciosus has 17 kinds of amino acids, the total content of which in pileus and stipe is respectively 12.75% and 8.98%. The essential amino acid makes up 48.39% of the total amino acids.The first limit amino acid is met.

松乳菇子实体中含有17种氨基酸，氨基酸的总含量在菌盖和菌柄中分别为：12.75％，8.98％，其中必需氨基酸含量占总氨基酸含量的48.39％，明显高于FAO／WHO模式的标准蛋白，略低于松口蘑和牛舌菌；松乳菇的第一限制氨基酸为蛋氨酸；化学评分、氨基酸评分、必需氨基酸指数、生物价、营养指数、氨基酸比值系数分分别为：77.6、64.9、98.6、95.8、23.2、74.19。

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你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。