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end group determination 末端决定
The structure was verified by 1H-NMR,GPC and end group titration techniques. 通过核磁共振氢谱(1H-NMR)、凝胶渗透色谱(GPC)、端羟基滴定等方法;研究了所合成的三嵌段共聚物的结构.
And the IR analysis shows that silicone resin possesses hydroxyl end group. 红外光谱(IR)显示,合成的硅树脂含有端羟基。
In this paper, two sets of flow charts for point group determination by convergent beam electron diffraction (CBED) were given. 本文设计了两套应用会聚束电子衍射(CBED)测定晶体点群的优化实验流程图。
The measurement of carboxyl end group content in PBT was discussed with an automatic potentiometric titrator. 采用全自动电位滴定仪测定PBT切片的端羧基含量,对称样量、溶剂的配比、滴定剂的浓度等进行了正交优化。
The carboxyl end group value control of Du pont's polyeser technology in direct spinning process is studied. 本文从工业生产的实践出发对杜邦聚酯技术直接纺工艺中端羧基控制进行了研究。
The reasons for the carboxyl end group fluctuation of bottle grade PET base chips were analysed. 摘要对瓶用基片端羧基波动的原因进行了分析。
The dendrimers of amino as end group have no visbreaking effect on the crude oil. 端基为氮基的树状大分子对原油不具有降黏效果。
Mechanical property test, end group analysis and SEM were adopted to study the ageing of PET and PBT composite... 采用拉伸强度与冲击强度测试、端基分析及扫描电镜分析等手段探讨了PET、PBT复合材料的老化机理和老化性能。
The results show that the dendrimers of ester as end group have visbreaking effect on the crude oil. 5代树状长链酯对原油的降黏性能,分析了树状大分子的端基结构对原油降黏性能的影响。
The results showed that the compatibilizer could react with the end group of PET,meanwhile,it was compatible with SEBS very well. 结果表明,增容剂能够与PET的末端羧基发生反应,并与SEBS有很好的相容性。改性PET的结晶度降低,晶粒尺寸减小,缺口冲击强度提高。
The isothermal crystallization curves of PPS and its blends both exhibitdouble peaks because of the different end group structure of PPS. 经等温结晶处理的试样,在熔融时相应的PPS也呈现双峰,其低温峰随结晶温度的提高而向高温方向移动。
The R groups determine the catalytic properties of enzyme proteins. R基团还决定酶蛋白的催化性。
Results indicate interestingly that the double bond of GMA polymerized with polystyryl carbanion and the molar ratio of epoxy end group and polystyrene oligomer can be adjusted. 结果表明：在GMA与聚苯乙烯阴离子反应的过程中，GMA在活性种的终端发生了聚合，所得产物中环氧端基与聚合产物的摩尔比可根据需要进行调节。
With more than 1000 employees wants to worldwide the DEHN Group determine what is ""State of Art"". 整个DEHN集团1000多名员工致力于领先的技术，他们在公司的一流实验室里从事研发工作。
The ethanol used as solvent in polymerization may be introduced intopolymer, forming end group structure, dominantly RCH:CHCH_2CH(OH)CH_3 (cis andtrans). 确定了在聚合过程中乙醇转移到分子链端的主要结构是RCH=CHCH_2CH(OH)CH_3(顺式和反式),它占羟基总量8%25左右。
With more than 1000 employees wants to worldwide the DEHN Group determine what is "State of Art". 整个DEHN集团1000多名员工致力于领先的技术他们在公司的一流实验室里从事研发工作。
The NMR functional group determination of the prepared product agreed with that of the imported standard product, the processability determined by rheometer is better than that of the same domestic products. 制取的产品经核磁共振官能团测定和进口标准品一致,经流变仪上加工性能测定优于国内同类产品。
The accident put an untimely end to the party. 意外事故使聚会匆匆结束了。
The boys were itching for the lesson to end. 那些男孩子们渴望下课。

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