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- Sulfonated polyethersulfone (SPES), which was prepared by eletrophilic substituent reaction, was blended with PES to obtained SPES/PES flat ultrafiltration membrane and its properties were tested. 摘要采用亲电取代反应成功合成磺化聚醚砜(SPES)，利用聚醚砜(PES)与其共混制备SPES/PES平板超滤膜，并对其进行性能表征。
- eletrophilic substituent 亲电子取代基
- FRAM is considered as the substituent of asynchronous SRAM to taste commonly. FRAM一般被认为是异步SRAM的代替品。
- The new thing substituent to old thing, certainly will wants to cause.. 新事物对旧事物的取代，势必要引起...
- The substituent effects of ethoxy groupswere studied on the chemical composition and properties of plasma polymers. 研究了乙氧取代基对聚合物化学组成和性能的影响。
- The tacticity of polymers is mainly influenced by the polarity of substituent group of vinyl monomer. 作者认为影响聚合物等规度的因素主要是取代基的极性效应。
- The substituent of methyl has different electrical effects in organic solvent with various polarities. 甲基在不同极性的溶剂中表现不同的电子效应；
- The chromogenic responding ability increases as the substituent changes from phenyl to naphthyl or anthryl. 实验结果表明，偶氮基团的引入改善了8-羟基喹啉的生色能力，并且在乙腈溶液中随着取代基由苯基变为萘基和蒽基时，化合物的吸收光谱发生红移。
- The results showed that chloric substituent in polymer chains prevented the chains from further chlorination. 结果表明,大分子链上的氯取代基对分子链进一步氯化起阻碍作用;
- And it is the substituent of the traditional method of the formaldehyde Vaporising sterilization. 方法:采用枯草芽孢杆菌作生物指示剂,进行细菌挑战性试验。
- The fluorescence intensity of porphyrin also relates to the substituent positions on the phenyl groups. 此外，荧光强度还与卟啉的苯环上取代基的取代位置有关。
- From the 1H，13C NMR ,we could verdict the stucture of the substituent of Cage-like silsesquioxane . 实验过程中，首先利用1H NMR、13C NMR确认了笼上硅原子取代基的结构；
- But when adding hydroxyl substituent to the C5 on A ring , it has a greater influence on the compound than on B ring . 而A环C5上取代羟基的加入对整个体系的荧光光谱影响比B环要显著得多。
- So it is obvious substituent of large conjugation will lead to red shift of the corresponding absorption wavelength. 显然最大吸收峰会随着侧链共轭程度的增大而红移。
- Gelling temperature is affected by the location and quantity of OCH 3 substituent. 我国3种琼脂海藻均为优质的琼脂原料;
- Another important application of sulfonated aluminum phthalocyanines containing halogen substituent is its photo sterilization. 磺酸基卤素铝酞菁的另一个重要应用为光学杀菌性。
- These clusters show different fluxional behaviour and ligands according to various substituent around the metals of osmium. 根据羰基配体取代基的不同,该类簇合物中小分子的移动种类及方式也有所不同。
- Results That the different toxicity of the nitrobenzol compounds to HB,because of different substituent and different position of substituent. 目的评价常见的13种硝基苯类化合物的急性毒性。
- Substituent Effect on the Third-Order Optical Nonlinear Properties and the Excited State Relaxation Processes in Porphyrins[J]. 引用该论文 刘志斌;潘海滨;金锋;张新夷;周映春;黄素秋.
- The healthy soy sauce was produced with mixed strain fermentation through using oat and residual biomass of beer substituent for soybean powder. 对以燕麦和啤酒废弃生物质替代部分豆粕为原料,利用混合菌种发酵酿造保健酱油进行了研究。
