| 1. | Thus varying the nature of r from primary to secondary to tertiary alkyl results in increasing yields of the hydroxy ethers . 当R按伯、仲、叔烷的顺序递变,则所得羟基醚的产率就随之而增高。 |
| 2. | The oh functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water or trimethylol propane . 用缩水甘油、乙二醇,水或三羟甲基丙烷等改良剂,可控制聚醚的羟基官能团。 |
| 3. | The oh functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water or trimethylol propane . 用缩水甘油,乙二醇,水或三羟甲基丙烷等改良剂,可控制聚醚的羟基官能团。 |
| 4. | The oh functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water, or trimethylol propane . 可用缩水甘油,乙二醇,水或三羟甲基丙烷等改良剂,可控制聚醚的羟基官能团。 |
| 5. | Synthsis of new halogenated diamino - triphenyl ethers 新型卤代二氨基三苯醚的合成 |
| 6. | Bromination substitution reaction of nitro - triphenylether 硝基三苯醚的溴化反应 |
| 7. | Synthesis of amino diphenyl ethers by na2s reduction 卤代氨基二苯醚的合成研究 |
| 8. | Standard specification for propylene glycol monomethyl ether 丙二醇甲基醚的标准规范 |
| 9. | Multi - bromination of chloro - substituted nitro - diphenylether 氯代硝基二苯醚的多溴代反应 |
| 10. | Study on synthesis of brominated amido - biphenyl ethers 新型卤代双硝基三苯二醚的合成研究 |