2) Anionic Ring-opening Polymerization
阴离子开环聚合
1.
Study on Preparation and Property of Nylon 6/Montmorillonite Hybrid Composites by Anionic Ring-opening Polymerization;
阴离子开环聚合制备尼龙6/蒙脱土复合材料及其性能研究
2.
Poly[methyl(trifluoropropyl)siloxane] (PMTFPS) which exhibits superior fuel-and solvent-resistance may be obtained by the anionic ring-opening polymerization(ROP) of F_3, but the backbiting' and redistribution side reactions occurs during the polymerization.
1,3,5-三甲基-1,3,5-三(3′,3′,3′-三氟丙基)环三硅氧烷(F3)的阴离子开环聚合可以合成优越耐油耐溶剂性能的聚甲基三氟丙基硅氧烷(PMTFPS),但在开环聚合过程中“反咬”与再分布副反应严重,要得到高分子量、高产率的氟硅聚合物材料,必须严格控制聚合反应条件。
3.
In this dissertation,the preparation of PEO and PEO-PPO macromonomers via anionic ring-opening polymerization is presented.
最终试验方案以甲醇为起始剂,使之与萘钾反应转化为醇钾,然后以此醇盐作为引发剂依次引发EO、环氧丙烷(PO)的阴离子开环聚合合成末端带有活性种的PEO-PPO两嵌段共聚物,然后用甲基丙烯酰氯(MAC)作为封端剂对该嵌段共聚物进行封端得到大分子单体(PEO-PPO-MA),其中聚环氧乙烷部分为亲水链段,聚环氧丙烷部分因带有甲基为疏水链段。
3) in-situ polymerization via anionic ring-opening path
阴离子开环原位聚合
1.
The process of preparing MC nylon/ rectorite composites by in-situ polymerization via anionic ring-opening path using rectorite modified with quaternary ammonium salts in the presence of CH_ 3 ONa catalyst and isocyanate co-catalyst was studied,and the effects of various reaction condition were discussed.
研究了己内酰胺在甲醇钠催化剂和异氰酸酯助催化剂的存在下,采用季铵盐改性累托石由阴离子开环原位聚合法制备MC尼龙/累托石复合材料的工艺,并讨论了各种反应条件的影响。
5) Cationic ring-opening polymerization
阳离子开环聚合
1.
Polytetrahydrofuran(PTHF) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4·SO_3-HClO_4 system as a catalyst.
以发烟硫酸-高氯酸为催化剂,通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃(PTHF)。
2.
Two polyoxetanes,poly 3-(2-cyano ethoxy)methyl-3′-methyloxetane(POA) and poly 3-(methoxy(triethylenoxy))methyl-3'-methyloxetane(POE) were synthesized by the cationic ring-opening polymerization(CROP).
认为活性链端机理和活性单体机理两种机理的相互竞争、相互转换可解释氧杂环丁烷阳离子开环聚合反应中无法通过单体与引发剂的摩尔浓度比来调节聚合物分子量,分子量分布宽,并伴有大量齐聚物生成的现象。
3.
3-Nitratomethyl-3-ethyloxetane was synthesized by the process of cyclization,nitation from trimethlolpropane and diethyl carbonate, and the homopolymer of 3-nitratomethyl-3-ethyloxetane was synthesized with 1,4-butanediol as initator and boron trifluoride etherate as an catalyst by cationic ring-opening polymerization.
Et2O)为催化剂,NIMEO发生阳离子开环聚合得到一种端羟硝酸酯均聚醚PNIMEO。
6) Ionic ring-opening polymerization
离子开环聚合
1.
Polysiloxane emulsions were prepared through emulsion ionic ring-opening polymerization.
采用乳液离子开环聚合手段制备了聚有机硅氧烷乳液。
补充资料：阴离子
分子式：
CAS号：
性质：电解时向阳极迁移的带负电荷的粒子，也称阴离子，如C1－，SO4－2，PO43－等。
CAS号：
性质：电解时向阳极迁移的带负电荷的粒子，也称阴离子，如C1－，SO4－2，PO43－等。
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