Effect of Multihole Silicon Dioxide on Crystallization Behavior of Poly(ethylene oxide);
多孔二氧化硅对聚环氧乙烷结晶行为的影响
This paper introduced advance in synthesis technology of poly(ethylene oxide)and mechanism of coordinate anionic polymerization,and reviewed the catalysts used in the polymerization of ethylene oxide.
介绍了聚环氧乙烷合成技术的发展概况及阴离子配位聚合机理,对环氧乙烷聚合用催化剂进行了综述。
2-Sulfanilylpyrimidine(sulfadiazine) sodium was used to initiate the ring-opening polymerization of ethylene oxide to form sodium sulfadiazine poly(ethylene oxide)(PEO) (inhomogeneously), and the polymerization was terminated with 3,5-di-(N-acetamino)-2,4,6-triiodobenzoyl chloride to form a bifunctional PEO with a targeting and a contrast-medium group.
用-4胺基-N-2(-嘧啶)苯磺酰胺钠(磺胺嘧啶钠)作引发剂,引发环氧乙烷(EO)开环聚合,反应在非均相中进行,用自制的3,5-二-(N乙酰氨基)-2,4,6-三碘苯甲酰氯(泛影酰氯)作封端剂封端该反应,合成了含有靶向和造影双功能基团的聚环氧乙烷(PEO)大分子,反应在80℃下约需96h完成,产率为87%～90%。
Combined with the GB8574-2002 potassium tetraphenylborate gravimetry method, silicon was deposited by polyethylene oxide in an acid environment.
为了精确测定分解反应过程中钾的挥发量,结合GB85742002,在样品高钾铝硅酸盐物料(钾长石、碳酸钾焙烧熟料,K2O含量大于15%)处理中采用聚环氧乙烷絮凝沉淀Si,新制Ca(OH)2溶液除去Mg2+、Fe2+、Fe3+、Mn2+等其他阳离子,加入碳酸铵稳定溶液pH值以除去Ca2+和Al3+。
The results showed that the compound prepared has s high retardation efficiency and high smoke removing property for polyethylene and polyethylene oxide.
通过ＩＲ、１ＨＮＭＲ和元素分析予以表征，并研究了其对聚乙烯（ＰＥ）和聚环氧乙烷（ＰＥＯ）的阻燃性能。
The solubility parameters of PEO (polyethylene oxide), PPO(polyepoxypropane) and PTHF (polytetrahydrofuran) have been studied by inverse gas chromatography using Guillet's method.
用反相色谱法研究了聚环氧乙烷、聚环氧丙烷和聚四氢呋喃的溶解度参数，按Ｇｕｉｌｌｅｔ的方法得到１２０℃时的溶解度参数分别为８。
Conductivity of Polyoxyethylene/Poly (2-vinyl pyridine)Blend and Compatibilizing Effect of Lithium Perchlorate;
聚环氧乙烷与聚2－乙烯基吡啶混物的导电率及高氯酸锂的增容作用
Graft terpolymerization of polyoxyethylene macromer with acrylates;
聚环氧乙烷大单体与丙烯酸酯的三元接枝共聚
Then multiblock copolymers was obtained by condensing polyoxyethylene and poly(2 vinylpyridine)with dichloromethane in the presence of potassium hydroxide.
α-甲基萘锂作为引发剂利用阴离子聚合得到 2 乙烯基吡啶的遥爪双羟基低聚物 (P2VP) ,然后以二氯甲烷作偶联剂与聚环氧乙烷 (PEO)反应制备P2VP和PEO多嵌段共聚物 ,考察了反应时间对偶联反应的影响 ,并对共聚物进行了IR和1H NMR表征 ,由1H NMR谱的积分曲线得到了共聚物中PEO链段质量分数。
Some Improvements in Measuring Silica with the PEO Condensing Weight Method;
聚环氧乙烷凝聚重量法测定SiO_2几点尝试
In order to improve the electrochromism of V2O5 films, PEO/V2O5 nanocomposite films were prepared by direct intercalation of high ion conducting and water soluble poly(ethylene oxide), PEO, into V2O5 sol via sol-gel route.
为改善V2O5薄膜的电致变色性能,采用溶胶-凝胶法将具有高离子电导率并具有水溶性的聚环氧乙烷(PEO)直接嵌入V2O5层间,制备了PEO/V2O5纳米复合薄膜。
This review focuses on recent progress in stimuli-responsive and amphiphilic block copolymers containing polymethacrylates,poly(ethylene oxide)(PEO),and poly(propylene oxide)(PPO),which are prepared by various cont.
本文综述了利用各种可控/活性聚合方法制备不同结构刺激响应性的两亲性嵌段共聚物研究的最新进展,重点介绍聚(甲基)丙烯酸及其酯类与聚环氧乙烷(PEO)和聚环氧丙烷(PPO)类结构的两亲性嵌段共聚物的合成以及它们在水溶液中对pH值和温度变化的响应性。
Study on synthetic technology of poly(ethylene oxide);
聚氧化乙烯合成工艺研究
Preparation and Characterization of Poly(ethylene oxide)/ Montmorillonite Intercalation Compound;
聚氧化乙烯/蒙脱土纳米嵌入化合物的制备与结构表征
Isothermal crystallization of poly(ethylene oxide)(PEO) under predetermined nucleation condition was simulated by use of Monte Carlo method and treated by the Avrami equation.
用Monte Carlo方法模拟了聚氧化乙烯(PEO)在预先成核条件下的等温结晶过程,并用Avrami方程进行了结晶动力学处理。
The Studies of Poly (ethylene oxide) with Aliphatic Polycarbonate Blends
聚环氧乙烷/脂肪族聚碳酸酯共混研究
Synthesis, Characterization and Application of Polymers Based on Poly(ethylene Oxide);
聚环氧乙烷（PEO）类聚合物的合成、表征及应用
Synthesis and Controlled Drug Release of Amphiphilic Graft Copolymers PEO-b-PGL-g-PCL
聚环氧乙烷-g-聚己内酯两亲性接枝共聚物的合成及药物释放行为
ethylene oxide addition polymer
环氧乙烷加成聚合物
Synthesis and Characterization of EO/PO Random Copolyethers;
环氧乙烷/环氧丙烷无规共聚醚的合成与表征
Synthesis of Copolymer of Epichlorohydrin and Diethanolamine
环氧氯丙烷-二乙醇胺共聚物合成研究
ETO (ethylene oxide)
环氧乙烷，乙烯化氧
Study on the Ring-Opening Polymerization of Ethylene Oxide and Propylene Oxide;
环氧乙烷和环氧丙烷的开环聚合反应与产物性能研究
POLYMERIZATION OF EPICHLOROHYDRIN BY YTTRIUM ACETYLACETONATE
乙酰丙酮钇催化环氧氯丙烷的均聚合与共聚合
QUANTUM CHEMISTRY OF THE ETHYLENE OXIDE CATIONIC POLYMERIZATION CATALYZED BY BF_3
BF_3-H_2O催化环氧乙烷阳离子开环均聚的量子化学
Ring-Opening Polymerization of Ethylene Oxide Initiated by Sodium Methoxide
甲醇钠引发的环氧乙烷开环聚合反应过程
Envioronmental Hazard of Alkylphenol Ethoxylates and Evaluation on its Analytical Methods
烷基酚聚氧乙烯醚的环境危害及检测方法评价
alkyl polyoxyethylene ether sulfate
烷基聚氧乙烯醚硫酸盐
ethylene oxide condensate emulsifier
环氧乙烷缩合乳化剂
Synthesis and characterization of styrene oxide sulfonated polyether amphoteric polymer
聚环氧苯乙烷磺酸聚醚两性高分子的合成与表征
Simulation of Epoxyethane Production Process by Ethylene Oxidation;
乙烯氧化制环氧乙烷过程的数学模拟
Synthesis of Ethylene Glycol Monoether Acetate by One Step Process from Ethylene Oxide
环氧乙烷一步合成乙二醇单烷基醚乙酸酯
Study on EO-THF Copolymer Reference Materials Used in Solid Propellant;
高能固体推进剂用聚（环氧乙烷—四氢呋喃）标准物质的研究与制备