简要介绍了多异氰酸酯三聚体的特点,以及多异氰酸酯三聚催化剂三正丁基膦的物理性质。
The features of isocyanate trimer and physical properties of tri-n-butyl-phosphine for isocyanate trimer catalyzer were introduced.
本文探讨了聚氨酯胶粘剂几种固化剂的合成及甲苯二异氰酸酯(TDI)三聚体的固含量、用量等对不同类型的聚氨酯胶粘剂初粘力的影响。
In this paper, several curing agent of polyurethane were synthesized. Influences of solid content and dosage of TDI tripolymer on different PU adhesion high initial bonding strength were discussed.
其功能与周期蛋白和周期蛋白依赖性激酶形成的异源三聚体存在化学计量关系。
It functions in stoichiometric relationships forming heterotrimeric complexes with cycling and cyclin-dependent kinases.
三聚体也能分解成有毒的单体形式。
振动分析表明二聚体和三聚体存在典型的红移氢键。
Vibration analysis show that dimer and trimer have typical red-shift hydrogen bond.
三聚氰胺是氨腈的三聚体。它含66%的氮(质量)并在燃烧或焦化时通过释放氮气为树脂产品提供阻燃特性。
Melamine is a trimer of cyanamide. It contains 66% nitrogen (by mass) and provides fire retardant properties to resin formulas by releasing nitrogen when burned or charred.
它是一个三聚体,与目前所研究过的任何其他通道都不同。
经过短时间反应后,大多数单体消失,反应体系将是含有二聚体,三聚体和其他低聚物的混合物。
After a short reaction time most of the monomer will have disappeared and the reaction system will contain a mixture of dimer, trimer and other low polymers.
核蛋白晶体构造是一种由三条大型分子链组成的三聚体,每一条支链形状就象鸡冠一样。
The crystal structure of the nucleoprotein is a trimer, with each monomer molecule shaped like a crescent.
目的:检测抑癌基因脆性组氨酸三聚体(FHIT)基因在口腔鳞状细胞癌(OSCC)的表达情况,探讨其在OSCC发生过程中的作用及其意义。
Objective To study the expression of fragile histidine triad (FHIT) in oral squamous cell carcinoma (OSCC), and discuss its role and significance in OSCC.
以一种碱金属羧酸盐k- 1000作为甲苯二异氰酸酯(TDI)三聚反应的催化剂合成了以TDI三聚体为主要成分的多异氰酸酯固化剂。对合成工艺条件进行了探讨。
A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000. The reaction conditions were studied.
以一种碱金属羧酸盐k- 1000作为甲苯二异氰酸酯(TDI)三聚反应的催化剂合成了以TDI三聚体为主要成分的多异氰酸酯固化剂。
A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000.
在正常生长条件下,热激因子处于钝化的单体状态,而当热激时,热激因子形成三聚体并与DNA结合,同时通过转录激活域的活化而激活热激基因的表达。
HSF is present in a latent state under normal conditions; it is activated upon heat stress by induction of trimerization, high affinity binding to DNA and transcriptional activity.
目的研究脆性组氨酸三聚体(FHIT) 基因异常转录与结肠癌的相关性。
Objective To study the relationship between aberrant FHIT transcription and colon carcinoma.
它以三种主要形式存在:一个低分子量的三聚体,一个中等分子量的六聚体和一个高分子量的多聚体(3)。
It exists in three major forms: a low molecular weight trimer, a medium molecular weight hexamer and a high molecular weight multimer (3).
它以三种主要形式存在:一个低分子量的三聚体,一个中等分子量的六聚体和一个高分子量的多聚体(3)。
It exists in three major forms: a low molecular weight trimer, a medium molecular weight hexamer and a high molecular weight multimer (3).
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