官能度
- 名functionality
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用凝胶渗透色谱法(GPC)测定端羟基聚丁二烯(HTPB)官能度分布。
The functionality distribution of hydroxy-terminated polybutadiene ( HTPB ) was determined by gel permeation chromatography ( GPC ) .
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用光谱法确定了改性蓖麻油(MCO)的平均羟基官能度。
The average hydroxyl functionality of MCO was measured by spectrum method .
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梓油酸合成C(22)二官能度缩水甘油酯型环氧树脂的研究
Study on Synthesis of c_ ( 22 ) diglycidyl ester type epoxy resins from stillingia oil fatty acids
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并研究了四官能度星型支化SBS试样的~(13)C序列结构。
The sequence structure of four arm star-type branches SBS was studied by 13C-NMR .
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探讨了用TLC法研究HTPB官能度分布的可靠性。
The reliability of TLC to determine the functionality distribution ofHTPB has been discussed .
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通过IR光谱、GPC分析以及化学滴定法能估算出预聚物的官能度。
By using chemical analysis , IR spectrum and GPC analysis , the function degree of the prepolymer can be calculated .
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制备聚氨酯预聚体用的聚醚多元醇,其官能度一般为2-3,相对分子质量在400-4000之间,异氰酸酯则使用MDI预聚物。
Polyols for making prepolymers are polyether polyols , with 2-3 functionality and molecular weight is between 400 and 4000 .
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实验结果表明,NVP具有调节混合物系统官能度与体系黏度、交联密度及影响反应速度的作用,在适量的NVP含量下,光栅的衍射效率得到优化。
The results indicate that the 1st order diffraction efficiency of grating can be optimized at the NVP concentration of 10 % .
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本文建立了两个相关的∑Aai-B2型凝胶化反应方程,含试样官能团数和重均官能度两个未知数。
The present paper establishes two equations on gelation reaction of type ∑ Aa1-B2 , containing two unknown numbers of functional group and weight average functionality .
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讨论了多元醇组分平均每个羟基所对应的链段的相对分子质量(MOH)、平均官能度以及异氰酸酯种类对高硬度聚氨酯弹性体性能的影响。
The effect of the factors , such as equivalent value and average functionality of polyol mixture , polyisocyanate type , on the properties of high-hardness polyurethane elastomers were discussed .
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使用不同的活性稀释剂配制可UV固化的聚氨酯丙烯酸酯(PUA),研究了活性稀释剂的化学结构和官能度对PUA的粘度和其固化膜的动力学性质的影响。
UV - curable polyurethane acrylate ( PUA ) is prepared using various reactive diluents . It is studied the effect of the chemical structure and functionality of the reactive diluents on their viscosity and dynamic mechanical properties .
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实验结果表明,THF·BF3催化体系制备的PECH,相对分子质量1500~2000,平均官能度接近于2。
The results show the THF · BF3 system is the best choice for preparing PECH with functionality near 2.0 , and the molecular weights are 1500 ~ 2000 .
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采用双金属络合催化剂(DMC)制备具有极低的不饱和度、相对分子量高、分子量分布窄、平均官能度高等特点的新型聚醚多元醇。
In this paper , a double-metal cyanide complex catalyst ( DMC ) was used to prepare a new polyether polyol with very low unsaturation , high equivalent molecula weight , narrow molecular weight distributing , high average functionality , etc.
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利用N-121型UV固化测试仪测定光固化体系的固化进程,研究了活性稀释剂的官能度、光引发剂浓度及光照强度等对光固化速度的影响。
In this paper , the curing process of UV curable systems was introduced using N & 121 model UV Curing tester . Influence of the functionality of reactive diluents , the concentration of photoinitiator in curable composition and the UV light intensity on the curing reactivity were also investigated .
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通过硅氢加成反应合成一种新型醇型六官能度亚乙基硅氧烷,并以此作为交联剂,与107硅橡胶、填料、催化剂等配混,制备双组分脱醇型RTV硅橡胶。
A new hexa - functional ethylidene siloxane was synthesized through hydro-silicone addition reaction . Using the compound as cross-linking agent to prepare two-component de-alcohol RTV silicone rubber mixing with 107 silicone rubber , fillers and catalyst .
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初步研究结果为,双官能度引发剂热分解级数为1级,热分解频率因子为6.63×10~(10),热分解活化能为82.6KJ/mol;
The results show that thermal decomposition series of bifunctional initiator is 1 , thermal decomposition factor of it is 6.63 × 1010 , thermal decomposition activation energy of it is 82.6KJ / mol ;
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采用羟基官能度不同的马来酸酐改性蓖麻油(MCO),合成了一系列软段含有离子基的聚氨酯水分散液(MCPU)。
A series of aqueous polyurethane dispersions ( MCPU ) with ionic groups in the soft segments were prepared with maleic anhydride modified castor oil ( MCO ) of various hydroxyl functionality .
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多官能度橡胶增韧环氧树脂的相分离研究
Study on the phase-separation of epoxy resin toughened by multi-functional rubber
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有规立构聚丁二烯橡胶端羟基聚丁二烯官能度及分布的测定
Stereoregular polybutadiene Determination of Functionality and Its Distribution of Hydroxy-Terminated Polybutadiene
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不同官能度单体对丙烯酸酯紫外光固化材料表面能的影响
Influence of monomers on surface energy of UV cured acrylates
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双官能度引发剂引发丙烯酰胺聚合研究
Study on the Polymerization of Acrylamide Initiated by Bifunctional Initiator
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重均官能度具有按当量数分数加和的性质。
Weighted Sorting Weighted average functionality possess additivity by equivalent number fraction .
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羟基预聚物重均官能度的测定温差异重流运行长度的研究
The determination of weighted average functionality for hydroxyl prepolymers
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端羟基聚丁二烯官能度及分布的测定
Determination of Functionality and Its Distribution of Hydroxy-Terminated Polybutadiene
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多官能度扩链剂对水性光敏聚氨酯丙烯酸酯性能的影响
Influence of Multi-functionality Chain Extender on the Properties of Waterborne UV-curing Polyurethane Acrylate
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二官能度单体是指每个分子含有两个官能团的单体。
A bis-functional monomer is a monomer containing two functional groups per molecule .
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六官能度亚乙基硅氧烷的硫化性能初探
Exploration of cure properties of hexa-functional ethylidene siloxane
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聚醚多元醇官能度的计算与测定多元醇固-固相变变温红外光谱研究
Study on infrared spectrum at various temperature with solid-solid phase Chang of the polyols
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由氯元素分析得到聚合物分子链的氯端基数均官能度为0.86~0.87。
The functionality of the Cl-terminated polymer is determinated as 0.86-0.87 by element analysis .
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通过测定该方程的系数,间接测得试样官能团数和重均官能度。
Coefficient of the equation , functional group number and weight average functionality indirectly measured .