Three N-12-hydroxyacylamino acid based surfactants(acidic,basic and neutral) were synthesized using 12-hydroxystearic and three kinds of natural amino acid as main raw materials and N,N′-dicyclohexylcarbodiimide (DCC) and N-hydroxysuccinimide(NHS) as coupling agents.
以12-羟基硬脂酸和3种不同类型的天然氨基酸为原料,采用N,N′-二环己基碳酰亚胺(DCC)和N-羟基丁二酰亚胺(NHS)作为偶合剂,合成了3种具有代表性的N-12-羟基硬脂酰氨基酸(酸性、中性和碱性)表面活性剂。
Recent development of coupling reagents and methods for hindered peptide containing N-alkylated or C_α,C_α-disubstituted amino acid residues is reviewed.
本文综述了合成含N-烷基氨基酸或α,α-二取代氨基酸位阻肽的偶合试剂研究新进展,并对这些新的偶合试剂及偶合方法的优点和不足予以评述。
A new interfacial reinforcing agent is introduced in the composite material of calcium carbonate/polyethylene,and it compounds with coupling agent to form a composite coupling agent,which can greatly reinforce the interfacial combination strength between calcium carbonate and polyethylene,and then greatly improve the impact strength of casting plastic products.
在碳酸钙-聚乙烯复合材料的界面之间,引入了一种新型的界面增强剂与偶联剂复合,大大提高了碳酸钙与聚烯烃的界面结合强度,从而大幅度提高注塑产品的冲击强度;考察了复合偶联剂的配比及其含量、碳酸钙的含量对复合材料性能的影响。
The results show that:based on selecting proper molar ratio(F/U≤13),changing synthetic technology,adding coupling-chelating agent(10%) and so on,low toxicity UF resins with good comprehensive performances could be made.
在低物质的量比条件下,分析讨论了脲醛胶的各项力学性能,甲醛释放机理,通过研究表明:选择适合的物质的量比(F/U≤1 3)、改进合成工艺、添加偶联螯合剂(1 0%)等,可生产出综合性能较好的低毒脲醛胶,胶合板甲醛释发量达到E1级(≤1 5mg/L),力学性能符合GB/T9846-1988及GB/T15104-1994标准要求。
colour couplers
彩色偶合剂（彩色照相术）
Effect of rare earth coupling agent and its co-agent on properties of polypropylene/magnesium hydroxide flame-reardant composites
稀土偶联剂和助偶联剂对PP/Mg(OH)_2复合阻燃材料性能的影响
The Study of Chitosan-TGA Mucoadhesive Preparation;
壳聚糖—巯基醋酸偶合物粘附制剂研究
Effects of Coupling Agents on the Properties of Nano-ZnO/HDPE Composites
偶联剂对nano-ZnO/HDPE复合材料性能的影响
Application of the Coupling Agent on SLAG/GF/PVC Composites
偶联剂在SlAG/GF/PVC复合材料中的应用
Study on Epoxidized Liquid Polymer as Coupling Agents for Anionic Polymerization;
阴离子聚合用环氧化液体聚合物偶联剂的研究
Research on Synthesis of Vinyl and Trifluoropropyl Silane Coupling Agents;
含乙烯基及三氟丙基的硅烷偶联剂的合成研究
The Synthesis of New Color-Producing Reagents and Their Application;
杯芳烃偶氮苯类显色剂的合成及其应用
Study on Sythesis of Polyhedral Oligomeric Silsesquioxane by Hydrolyzation of Silicon Coupling;
硅烷偶联剂水解缩合制备低聚倍半硅氧烷
Synthesis of Novel Silane Coupling Agents and Allyl Alcohol;
新型硅烷偶联剂及烯丙基醇的合成研究
Synthesis of Ligands of Chiral Catalysts of 1,3-Dipolar Cycloaddition Reaction;
1，3-偶极环加成反应的手性催化剂配体的合成
Study on Catalyst of CO Coupling Reaction to Diethyl Oxalate;
一氧化碳催化偶联合成草酸二乙酯催化剂研究
Synthesis and Properties of Azobenzene-containing Surfactant;
偶氮苯类表面活性剂的合成和基本性质
Synthesis of Block Copolymers via Macro-Azo-initiator
大分子偶氮引发剂法嵌段共聚物合成研究
Properties of PTFE Composite Filled with Nano-TiC
偶联剂处理对PTFE/纳米TiC复合材料性能的影响
The Effect of Coupling Agents on the Thermal Stability of Polyolifen Composites with Bamboo-Flour
偶联剂对木塑复合材料热稳定性的影响
Study on synthesis of novel silane coupling agent modified by phenylethynylphthalic anhydride
苯乙炔苯酐改性硅烷偶联剂的合成研究
Effects of coupling agents on the mechanic properties of PA6 composite filled with zinc oxide
硅烷偶联剂对ZnO/PA6复合材料力学性能的影响