1) silica-immobilized
硅胶固定化
1.
Four novel silica-immobilized quaternary ammonium acidic ionic liquids were synthesized using silica gel as a vector,γ-chloropropyltriethoxysilane(NQ-53) as a coupler,piperidine and 1,4-butanesultone as functional substrates and p-CH3PhSO3H,CF3COOH,H2SO4,HBF4 as proton donor.
以硅胶为载体,γ-氯丙基三乙氧基硅烷(NQ-53)为偶联剂,哌啶和1,4-丁烷磺内酯为反应性功能基,p-CH3PhSO3H,CF3COOH,H2SO4和HBF4为质子酸,设计合成了4种新型硅胶固定化季铵SO3H型酸性离子液体。
2.
In order to decrease the amount of ionic liquid,and the reaction time as well as to improve the catalytic efficiency in esterification,a novel silica-immobilized 1-methylimidazolium hydrogensulfate acidic ionic liquid was used.
为了减少离子液体用量,缩短反应时间,提高酯化反应的催化效率,该文以硅胶为原料与-γ(2,3-环氧丙氧基)丙基三甲氧基硅烷(KH-560)反应,合成了环氧基硅烷化硅胶,再与1-甲基咪唑硫酸氢盐发生开环反应,制备了一种硅胶固定化1-甲基咪唑硫酸氢盐离子液体。
3) chemically bonded silica stationary phases
硅胶键合固定相
1.
Research progress in chemically bonded silica stationary phases of HPLC;
高效液相色谱用硅胶键合固定相的研究进展
4) Silica Based Stationary Phases
硅胶基固定相
6) silicon ring closure
硅橡胶环固定
1.
Methods: The clinical data of 4 cases of choledocholithotomy with primary suture,drainage of the cystic duct stump using self-made silicon ring closure and withdrawal of drainage on day 5 post-operation were analyzed retrospectively.
目的:探讨胆总管切口I期缝合、用自制硅橡胶环固定胆囊管引流和早期拔管的可行性。
补充资料：固定化固定相开管柱
分子式：
CAS号：
性质：固定化固定相是：(1)固定相分子间进行共价交联；(2)固定相与毛细管内表面进行化学键合。主要固定化方法有原位加热缩合法、原位自由基诱导法等。通常涂渍方法制备的开管柱在升温使用中，不同程度发生固定液流失、液膜破裂等现象，而固定化固定相开管柱柱性能稳定，柱效高。
CAS号：
性质：固定化固定相是：(1)固定相分子间进行共价交联；(2)固定相与毛细管内表面进行化学键合。主要固定化方法有原位加热缩合法、原位自由基诱导法等。通常涂渍方法制备的开管柱在升温使用中，不同程度发生固定液流失、液膜破裂等现象，而固定化固定相开管柱柱性能稳定，柱效高。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条