1) blocking agent
封端剂
1.
The influences of different monomers,blocking agents and synthesis processes to the thickening ability are investigated.
利用二异氰酸酯和聚乙二醇在封端剂的存在下合成了一种水性聚氨酯缔合型增稠剂;考察了不同单体、封端剂以及反应工艺对产物增稠性能的影响;讨论了增稠剂的相对分子质量和相对分子质量分布与其增稠性能的关系。
2.
The blocking agent with enol keto stucture( BAEK) .
采用具有烯醇结构的封端剂,用反应活性较高的芳香族异氰酸酯制备了聚氨酯-丙烯酸酯(PUA)水分散液。
2) capping agent
封端剂
1.
Stearic acid was used as capping agent of the hyperbranched poly(amide-ester),IR spectrum testified the reaction.
应用红外谱图对改性的超支化聚(酰胺-酯)进行了分析,用十八酸作封端剂对超支化聚(酰胺-酯)进行端基改性。
2.
A series of sulfonic acid type hydroxyl-terminated organo-silicone/polyurethane micro-emulsions modified by N-β-aminoethyl-γ-aminopropyl trimethyldimethoxysilane(APAETMS)as capping agent were prepared by self-emulsification in water medium.
以N-(β-氨乙基)-γ-氨丙基三甲氧基硅烷(APAETMS)为封端剂,对自乳化法合成的新型磺酸型表面活性单体制备的磺酸型水性聚氨酯(简称WPU)微乳液进行改性,得到端羟基有机硅/聚氨酯微乳液;考察了单体1,2-二羟基-3-丙磺酸钠(DHPA)和APAETMS的含量对磺酸型WPU微乳液性能的影响。
3) Terminator
[英]['tə:mineitə] [美]['tɝmə,netɚ]
封端剂
1.
The title PU associative thickener is prepared by use of PU monomer that is obtained by reaction of IPDI and polyethylene glycol,then modified with chain extender and terminator and mixed with solvents and cosolvents.
利用异佛尔酮二异氰酸酯(IPD I)与一定相对分子质量的聚乙二醇进行本体聚合得到聚氨酯单体,加入扩链剂和封端剂进行改性,最后与溶剂和助溶剂进行复配成缔合型聚氨酯增稠剂成品。
4) End Capping Agent
封端剂
1.
A kind of polyurethane monomer was synthesized by the polymerization reaction of diisocyanate IPDI with polyethylene glycol of certain molecular weight, at the same time, added some chain expanding agent and end capping agent to modify it, so the polyurethane associative thickener were prepared by using some solvents to mix together.
利用异佛尔酮二异氰酸酯(IPDI)与一定相对分子质量的聚乙二醇进行本体聚合得到一定规格的聚氨酯单体,同时加入扩链剂和封端剂进行改性,最后与溶剂和助溶剂进行复配,制成缔合型聚氨酯增稠剂成品。
5) siloxane end-capping reagent
硅烷封端剂
6) end-blocked agent
端基封锁剂
补充资料：封端剂
使用有被保护的官能基如缩醛基的烷氧基甲硅烷基化合物作为封端剂来封端阴离子聚合物,生产官能化的聚合物。被保护的官能基在各种条件下都是稳定的,然后很容易转化成适用生产粘合剂、密封剂和涂料的反应性更高的末端官能基。
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