氧化还原引发体系
- 网络redox initiator
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通过氧化还原引发体系制备水性含氟乳液
Preparation of Fluoro Emulsion Through Redox Initiator System
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氧化还原引发体系的丙烯酰胺聚合动力学研究
Kinetic studies of solution polymerization of acrylamide with redox initiator systems
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以H2O2-硫脲(TU)氧化还原引发体系,研究了丙烯酰胺与玉米淀粉的接枝共聚反应规律。
The regularity of graft copolymerization of acrylamide onto corn starch by H_2O_2-TU initiation system was investigated .
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本文就K2S2O5&R2氧化还原引发体系对丙烯酰胺(AM)水溶液聚合的初期反应动力学行为进行了研究,得出动力学方程式。
This paper studied kinetic behaviour of AM aqueous solution poly - merization on initial stage for K_2S_2O_8 & R_2 redox initation system . The kinetic equation was given .
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采用氧化还原引发体系及复合乳液聚合方法,研究了环氧树脂/聚(苯乙烯丙烯酸丁酯甲基丙烯酸甲酯)[EP/P(StBAMMA)]半胶乳型工穿聚合物网络(SemiLIPN)的聚合反应规律。
The polymerization of epoxy resin / poly ( styrene butyl acrylate methyl methacrylate ) [ EP / P ( St BA MMA ) ] semi LIPN was studied by using redox system and composite emulsion polymerization technology .
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以高价铈盐(硝酸铈铵)和多羟基有机物(丙三醇、季戊四醇、蔗糖)组成的氧化还原引发体系为引发剂引发丙烯酰胺(AM)自由基聚合,采用1H-NMR和SEC方法对产物进行结构表征。
Acrylamide polymerization was conducted using Ce ~ ( 4 + ) and multi-hydroxyl reducer ( such as 1,2,3-propanetriol , pentaerythritol and sucrose ) as initiator systems . Polyacrylamide synthesized were characterized by () ~ 1H-NMR and SEC , and star-structure was displayed .
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考察了功能单体DM对引发剂KPS分解行为的影响,结果表明,功能单体DM与KPS可形成氧化还原引发体系,大大加速了其分解反应,但是仍然符合一级反应规律。
The influence of functional monomer DM to the decomposition behavior of initiator was evaluated . The results indicate DM and KPS can form an oxidation reduction system , consequently initiator decomposition reaction is accelerated greatly , but it still conforms to linear equation .
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以淀粉(St)、二甲基二烯丙基氯化铵(DMDAAC)、丙烯酰胺(AM)为原料,采用Fe2+-H2O2氧化还原引发体系,合成了接枝共聚物。
Using Fe 2 + H 2O 2 initiation system , a graft copolymer was synthesized by copolymerization of starch with dimethyl diallyl ammonium chloride ( DMDAAC ) and acryamide ( AM ) . Effects of various factors such as monomer / starch ratio and composition of monomer mixtures etc.
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抗坏血酸-过氧化氢新型氧化还原引发体系
A New Redox Initiative System of Ascorbic Acid and Hydrogen Peroxide
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自由基聚合氧化还原引发体系的分解速率常数
Decomposition rate constant of oxidation-reduction initiation systems in free radical polymerization
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丙烯酰胺水溶液聚合的几种氧化还原引发体系的研究
Study on the redox initiating system s of aqueous polymerization of Acrylamide
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不饱和聚酯树脂氧化还原引发体系的最新进展
The latest development of oxidation - reduction initiator system used for up resin
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氧化还原引发体系对DMC/AM/AA三元水溶液共聚合的影响
Effects of Redox Initiation Systems on the Aqueous Terpolymerization of DMC / AM / AA
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醋酸乙烯甲醇溶液聚合的新氧化还原引发体系的研究
Studies on a new redox initial system for the polymerization of vinyl acetate in methanol solution
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低温氧化还原引发体系的PU/MMA-BA超浓乳液共聚合
Concentrated emulsion copolymerization of PU / MMA - BA initiated by redox system at low temperature
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在氧化还原引发体系中,用乙烯基三乙氧基硅烷对苯丙乳液进行改性,制得一种适用于外墙腻子的聚合物。
This test describes the low temperature emulsion polymerization which proceed in the circumstance of oxidation-reduction initiator and composite emulsifier .
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铈离子氧化还原引发体系与铈离子引发接枝或嵌段共聚合研究的新进展
Recent Progress in the Studies of Ceric Ion Redox Initiation Systems and Graft or Block Copolymerization Initiated with Ceric Ion
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采用氧化还原引发体系可以提高单体转化率并实现单体聚合,但无法延长单体聚合的诱导期。
Conversion of polymerization can be improved by using oxidation-reduction initiator system but it is difficult to extend the idle time .
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以水为溶剂,过硫酸铵-亚硫酸氢钠氧化还原引发体系,研究了低分子质量聚丙烯酸钠的合成。
Syntheses of low - molecular weight polyacrylic acid sodium with water as solvent and APS - SHS as redox initiator are studied .
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结果表明,对于复合乳液聚合,氧化还原引发体系对乳液稳定性的影响远远优于热引发体系;
The results showed that for composite emulsion polymerization the stability of composite emulsion induced by redox system was more excellent than that induced by heat system .
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本文研究了以过硫酸钾/焦亚硫酸钠为氧化还原引发体系,在苯乙烯、醋酸乙烯酯为具体单体的乳液聚合中,单体水溶性与动力学之间的关系。
The relationship between monomeric solubility and kinetics of emulsion polymerization of styrene and vinyl acetate initiated by potassium persulfate / sodium pyrosulfite was studied in this paper .
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含胺基功能基团单体的聚合研究&Ⅸ.脂肪叔胺基N-取代丙烯酰胺作为氧化还原引发体系组分的研究
STUDIES ON THE POLYMERIZATION OF FUNCTIONAL MONOMERS CONTAINING AMINO GROUPS ⅸ . Study on the use of aliphatic tertiary ammo-group N-substituted acrylamides as a component of redox initiator system
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芳香族重氮盐氧化还原引发体系的研究Ⅰ.不同间、对位取代苯重氮硼氟酸盐对于氧化还原引发丙烯腈聚合反应速度的影响
Studies of redox initiation of aromatic diazonium salts & ⅰ . the influence of para - and meta-substituents of benzene diazonium fluoroborate as redox initiator on the rates of polymerization of acrylonitrile
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方法:单体用重结晶、活性炭吸附和阳离子交换树脂提纯,采用BPC&KPS氧化还原引发体系作引发剂进行水溶液聚合。
Methods The monomer was purified by recrystallization , absorption in active carbon and cationic exchange resin . The polymerization of aqueous solution of acrylamide ( AM ) was carried out by redox system initiator-KPS-BPC .
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实验确定的最佳反应条件是:引发剂用过硫酸铵-焦磷酸钠氧化还原引发体系,其用量为单体总量的0.4%~0.5%;
The optimal conditions for reaction were as follow : the initiator was ammonium persulphate with sodium pyrophosphate system , and its amount was as 0.4 % ~ 0.5 % as the amount of monomer ;
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利用半连续乳液聚合的方法合成了核壳型有机硅丙烯酸酯共聚复合乳液,采用氧化还原引发体系降低了聚合体系的反应温度。
Using a semi-batch synthesizing technique , a " core-shell " composite latex of siloxane-acrylate based copolymer was obtained , besides , the reaction temperature of the system was effectively lowered by the redox initiating system .
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介绍地下工程喷膜防水技术体系,喷膜防水技术采用氧化还原引发体系实现现场喷射聚合成膜。
The spraying-membrane waterproof technical system for underground engineering is introduced in this arti ˉ cle . The process of spraying , polyreaction and membrane-forming on site have been carried out by oxidation-reduction reac ˉ tive system .
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根据自由基反应机理,采用氧化&还原引发体系,对壳聚糖和丙烯酰胺进行自由基接枝共聚反应,制备出CAM。
According to free radical theory , the CAM was synthesized with acrylamide and chitosan , through oxidation-reduction initiator systems in acetic acid aqueous solution .
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以N,N,N,′N′-四甲基乙二胺-过硫酸钾为氧化-还原引发体系,用水相沉淀聚合法合成了超高相对分子质量的聚醋酸乙烯(PVAc)。
Using N , N , N ′, N ′ - tetramethylethylenediamine and potassium persulphate as a redox initiation system , high molecular weight poly ( vinyl acetate )( PVAc ) was synthesized by aqueous deposited polymerization .
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采用氧化-还原引发体系引发聚合有利于接枝反应的进行,在PB含量相同时,采用氧化-还原引发体系合成的PB-g-SAN接枝共聚物的接枝率比采用K2S2O8合成的接枝共聚物接枝率高。
Under the same rubber content , the grafting degree of PB g SAN initiated by K 2S 2O 8 is lower than those initiated by oxidation reduction initiator .