亲水基团
- 名hydrophilic grouping
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结果:添加亲水基团的硅橡胶印模材料在对牙冠颈缘复制精度上和传统的疏水型硅橡胶印模材料无显著差异。
Results Adding hydrophilic grouping Silicone impression material produced models was equal to tradition hydrophobicity impression material .
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结果表明亲水基团PEG的引入可以提高合成革吸湿透气性能。
The result show that the introduction of PEG , a hydrophile component can enhance the moisture absorption ability of synthetic leather .
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另外我们利用TEM,DSC,WAXD和SAXS等手段检测了亲水基团在聚合物膜中的分布。
The distribution of salt groups in the polymer films was studied by TEM , DSC , WAXD and SAXS .
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另外,Fe3O4@C核壳纳米材料相对前两者具有以下优点:(a)C由于其表面的亲水基团使其在水溶液中具有高的稳定性以及生物相容性。
Moreover , Fe3O4 @ C core @ shell nanoparticles have the following advantages : ( a ) Carbon materials improve biocompatibility and stability of magnetic nanoparticles in aqueous solution because of the hydrophilic groups on the carbon surface .
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说明高分子量PVP的稳定作用与高分子量PVP的长链分子结构及特殊的亲水基团分布有关。
The results show that the stabilization of high molecular weight PVP is related to the long-chain molecular structure and special distribution of hydrophilic groups .
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讨论了温度、-NCO-与-OH的物质的量之比(R)、亲水基团含量、合成工艺分别对材料力学性能、耐水性、玻璃化转变温度(Tg)等的影响。
The paper discussed the influence of temperature , the ratio of - NCO versus - OH groups , the content of hydrophilic group , hydration technique on the mechanical property , water-resistance and Tg of the polymer .
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在不同pH值环境中,通过调节亲水基团与疏水基团的比例,可在18~56℃范围内调节LCST,pH<7.5时LCST消失。
In different pH environments , by changing the proportion of the hydrophilic and hydrophobic segments on backbone and graft chain , LCST could be effectively adjusted between 18 ~ 56 ℃ .
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Bola型两亲化合物分子因具有中部是疏水基,两端为亲水基团的特殊结构,可在水中聚集形成单层类脂膜(MLM)和单分子层囊泡(MLM囊泡)。
S : Bolaform amphiphiles can form monolayer lipid membrane ( MLM ) and monolayer lipid membrane vesicle ( MLM vesicle ) in water .
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采用预聚合法,以聚酯二元醇(PEA)、甲苯二异氰酸酯(TDI)、二羟甲基丙酸(DMPA)为基本原料合成了分子链上带有亲水基团(-COOH)的聚氯酯预聚体。
Polyethylene glycol adipate ( PEA ), toluene diisocyanate ( TDI ), dimethylol propionic acid ( DMPA ) were used as main raw materials to synthesize polyurethane prepolymer whose molecular chain have hydrophilic group ( - COOH ) .
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多孔SiO2膜层经热处理后,具有很高的激光破坏阈值,但是结构中有许多Si-OH亲水基团,导致光学透过率受环境相对湿度的影响很大。
Although the porous silica antireflective ( AR ) coating has high laser damage threshold after heat treatment , its transmission is correlated with environment relative humidity due to many Si-OH hydrophilic groups on the coating surface .
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结果表明,复合胶乳的表面为PU中的亲水基团,内部为PU中的疏水区域与PA形成的IPN结构,并揭示了复合胶乳的形成机理。
The results indicated that the surface of the complex latex is hydrophilic moieties of PU , while the interior of the latex is IPN structure formed by the hydrophobic domain of PU and PA. A reasonable mechanism for the preparation of the complex latex was given .
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结果表明,随着亲水基团含量、-SO3Na/-COOH及HDI/IPDI摩尔比的增加,PUD胶粒平均粒径变小,黏度增加。
The results showed that the particle size decreased with the increasing of hydrophilic group content ( HGC ), - SO3Na / - COOH and HDI / IPDI molar ratio , but the viscosity increased .
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亲水基团的含量和固含量对聚氨酯乳液的影响
The Effects of the Hydrophilic Group Content and Solid Content on Polyurethane Emulsion
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树脂的结构表征和其羟值的测定表明所合成的互穿聚合物网络既有亲水基团羟基,又有疏水基团苯环;
Structure and hydroxyl values of PVA / PS IPN were characterized and measured respectively .
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而含有亲水基团的二甲酚橙螯合物不被树脂吸附。
The chelates of xylenol orange containing hydrophile groups are not sorbed by the resin .
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同样,这种清洁剂既有亲水基团又有疏水基团。
Again , molecules of these detergents have a hydrophobic portion and a hydrophilic one .
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硬段结构对分子链含亲水基团的聚氨酯形状记忆性能的影响
Effect of Hard Segment Structure on Polyurethane Shape Memory Effect with Hydrophilic Group in the Chain
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主链含亲水基团的聚氨酯力学性能和形状记忆性能的研究
Study on Mechanical Property and Shape Memory Property of PU Containing Hydrophilic Group in Main Chain
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红外光谱分析显示经碱性体系处理后,膜出现了羟基等带氧亲水基团;
On the surface of the membrane there were several hydrophilic groups such as hydroxy from FTIR .
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二是在配体中引入亲水基团,进行结构改造。
Introduce the hydrophilic group .
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另外我们还提出了亲水基团在膜形成过程中重新分布的机理。
A mechanism of salt groups re-distribution in film forming process was also suggested in the paper .
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探讨了胶膜光泽度与亲水基团及蓖麻油含量的关系,同时研究了氨丙基三乙氧基硅烷的加入对材料的机械性能和耐水性产生的影响。
The influences of the content of castor oil and hydrophilic groups on the film gloss were studied .
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结果表明,亲水基团-COOH质量分数达到1.5%,能保证乳液的力学稳定性;
The results showed that polyurethane emulsion could keep stable when the content of-COOH group reached 1.5 wt % .
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通过在1,8萘酐4位的烷基链上形成季铵盐亲水基团,合成了两个以1,8萘酐为母体的水溶性荧光染料。
Two water-soluble dyes were synthesized by forming quaternary ammonium salt in alkyl chain at 4-position of 1,8-naphthalic anhydride .
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讨论了软段相对分子质量、异氰酸酯种类和亲水基团含量等对性能的影响。
The influence of soft segment , isocyanate and the content of ionic chain extender on properties was discussed .
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由于较多亲水基团的存在,油相中含有3.7wt%的水。
Water contain is still 3.7wt % in the oil phase due to the presence of more hydrophilic groups .
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与只有一个亲水基团和一个亲油基团传统表面活性剂相比,有更高、更优越的表面活性。
Traditional surfactants only have one hydrophile group and one hydrophobic group . Gemini surfactants have better and higher surface activity .
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根据亲水基团的不同,表面活性剂从化学角度可分为阳离子、阴离子、非离子及两性表面活性剂。
In terms of its different hydrophilic group , surface-active agent can be classified into cationic , anionic and non-ionic surfactants .
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发现它们是一种具有多个亲油基团和多个亲水基团的多亲多疏的新型表面活性剂。
The results showed that they were new surfactants which have a lot of hydrophilic group and lipophilic group on their surface .
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双子表面活性剂是由连接基团通过化学键将两个(或以上)亲水基团和两个(或以上)亲油基团连接在一起而形成的一类新型表面活性剂。
The Gemini Surfactant is a new kind of surfactant which two or more hydrophilic group and lipophilic group are connected through chemical bond .