They are acrylaldehyde hydration, ethylene oxide formylation and biological zymolysis methods. a polymer of vinyl formaldehyde. 即丙烯醛水合法,环氧乙烷甲酰化法,生物发酵法。一种甲醛乙烯的聚合物。
Studies on Gas-Liquid Equilibrium of Sulfur Dioxide in Aqueous Poly ( Ethylene Glycol) Solutions Polymer electrolytes based on blends of waterborne polyurethane and polysiloxanes 聚乙二醇&水体系吸收二氧化硫的气液平衡研究水性聚氨酯-聚二甲基硅氧烷共混体系聚合物电解质的研究
Poly ( ethylene glycol) ( PEG) is a hydrophilic polymer which has flexible long chain. 聚乙二醇是一类亲水性长链聚合物。
The effect of poly ( ethylene glycol), dispersion medium, initiator and polymerization time on formation of magnetic polymer microspheres were investigated. 研究了控制聚合区域的方法,考察了分散稳定剂、分散介质、引发剂种类和用量、反应时间等因素对聚合行为及微球形成的影响。
With chlorinated polypropylene ( MCPP) and poly ( ethylene glycol) ( PEG) as raw materials, a kind of new comb-shaped amphipathic polymer containing PEG side chains attached to a MCPP backbone was synthesized in the presence of sodium. 以用等规聚丙烯改性氯化制得的氯化聚丙烯(MCPP)与聚乙二醇(PEG)为原料,在金属钠作用下,合成了以MCPP为主链、PEG为支链的梳形结构的两亲性高聚物。
The synthesis of poly ( ethylene oxide)( PEO) montmorillonite composite by direct melt intercalation of polymer powders in layered silicates is studied by using XRD, IR, DSC and SEM, etc. 用XRD、IR、DSC和SEM等分析方法研究了聚合物粉末直接熔融嵌入合成聚氧乙烯(PEO)-蒙脱石夹层复合材料的过程。
By using histamine as the template molecule, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the crosslinking agent, and zinc(ⅱ) protoporphyrin as the functional monomer, a new kind of molecularly imprinted polymer which may emit fluorescence was synthesized. 以组胺为模板分子,α-甲基丙烯酸为共功能单体,锌原卟啉为荧光功能单体,乙二醇二甲基丙烯酸酯为交联剂,合成了一种新的发光性分子印迹聚合物。
The ultraviolet-visible spectroscopy and chemical reduction behavior of a series of synthesized 1,2-di ( N-substituted-4-pyridinium) ethylene polymer ( abbreviated as PBE) are studied in this article. 合成了一系列1,2二(N取代4吡啶盐)乙烯类聚合物(简称PBE),研究了其紫外可见光谱性质及化学还原行为。
Plasticizer DOTP was prepared from ethylene glycol residue ( major component is PET low polymer) using single step process in which alcoholysis and ester interchange were combined. 以聚酯生产中产生的下脚料&乙二醇残渣(主要含PET低聚物)为原料,采用辛醇合并醇解、酯交换一步法工艺,合成了增塑剂DOTP。
The advance in application technique of ethylene propylene rubber in automobile, construction, wire and cable insulation, olefinic thermoplastic elastomer, polymer modification and oil additives were reviewed with 14 references. 介绍了世界乙丙橡胶在汽车、建筑、电线电缆、聚烯烃类热塑性弹性体、聚合物改性和油品添加剂等方面的应用技术进展。
In case of ethylene-styrene co-polymerization, melting point, crystallinity and relative molecular mass of co-polymer rapidly decreased with increasing styrene content in feed increasing, catalytic activity decreased as well. 乙烯和苯乙烯共聚时,随着苯乙烯含量的增加,共聚活性下降,共聚物的熔点、结晶度和相对分子质量都有较大幅度的下降。
When polymerization temperature was in the range of 30-80 ℃ and ethylene pressure was in 0.12-0.72 MPa, the polymerization activity increased as temperature and pressure while the bulk density of the polymer decreased from 0.27 g/ cm~ 3 to 0.22 g/ cm~ 3. 聚合温度在30~80℃和乙烯压力在0.12~0.72MPa时。随着温度和压力的提高,聚合活性增加,聚合物堆密度由0.27g/cm~3降低至0.22g/cm~3。
This paper reviewed the development situation of the first and second generation ethylene ( co) polymer products in the plant with Unipol technology, as well as the scientific progress in the related catalysts and technologies. 综述了Unipol工艺开发第一代及第二代乙烯(共)聚合物产品的进展情况,以及相关联的催化剂和工艺的科技进步。
Aminolysis studies of ethylene carbonate and polymer support of vinylene carbonate and 2-hydroxyethyl methacrylate 乙撑碳酸酯和乙烯撑碳酸酯-甲基丙烯酸-β-羟乙酯共聚物交联载体的胺解反应研究
Compatibilization of poly ( ether sulfone) poly ( ethylene terephthalate)/ poly ( P hydroxybenzoic acid) blends with a block crystalline polymer 嵌段液晶高聚物对聚醚砜-聚对苯二甲酸乙二醇酯/聚对羟基苯甲酸共混物的增容作用
Studies on ethylene catalytic sensor based on solid polymer electrolyte 低温固态电解质乙烯催化传感技术研究
Carbon black ( CB) was pre-treated by Titanate coupling agent and electrically conductive master batches ( ECMB) for fiber were prepared by melt-extruding pre-treated CB with Poly ( ethylene terephthalate) ( PET), polyethylene ( PE), and polymer blend ( PET/ PE). 将偶联剂处理后的碳黑分别与聚酯、聚乙烯及聚酯/聚乙烯共混聚合物,通过双螺杆熔融共混,制备了纤维级导电母粒。
Because the side chains of the polymer are hydrophilic oligo ( ethylene glycol) s, the polymer is partially soluble in water, but entirely soluble in THF. 由于亲水性寡聚氧化乙烯侧链的存在,该聚合物能微溶于水且易溶于四氢呋喃。
Poly ( ethylene oxide) ( PEO) is one of the most widely used biocompatible polymer due to its safety and non-toxicity for human body. 聚环氧乙烷(PEO)是目前最常用的生物相容性聚合物之一,具有安全、无毒的优点。
[ Poly ( ethylene terephthalate)-PET] milky white or yellow, height crystalline polymer and Surface smooth sheen is widely used in electric insulation. 聚对苯二甲酸乙二脂[poly(ethyleneterephthalate)-PET]是乳白色或浅黄色、表面平滑有光泽,高度结晶的聚合物,广泛的应用于电气绝缘材料。
Poly ( ethylene oxide)( PEO) is a kind of water-soluble polymer, which can be used as conditioner, water retention agent, thickening agent, dispersant, etc. High molecular weight PEO plays distinctive role in daily chemicals formulation. 聚氧化乙烯(PEO)是一种具有良好水溶性的聚合物,可作为调理剂、保水剂、增稠剂、分散剂等。