搜索结果: 16-30 共查到“知识库 聚合化学反映工程”相关记录95条 . 查询时间(1.14 秒)
2-氯-5-氯甲基吡啶在气升环流反应器中的合成研究
2-chloro-5-chloromethylpyridine 2-chloro-5-methylpyridine direct chlorination
2009/4/28
A new process for the direct chlorination of 2-chloro-5-methylpyridine to yield 2-chloro-5 -chloromethylpyridine in an airlift loop reactor (ALR) has been studied. Five main reaction conditions inclu...
Kinetic Treatment for Copolymerization of Styrene or MethylMethacrylate with N- phenylmaleimide
copolymerization kinetic model charge-transfer complexminipage
2009/4/20
Shirota’s kinetic model and our kinetic model were used to treat thekinetic data of styrene (St) and N-phenylmaleimide (PMI)copolymerization in which charge-transfer complex (CTC) was formed.The res...
Two kinds of fixed carrier membrane materials containing secondary amine and carboxyl groups whichcan be used as carriers of CO2 were prepared. One was poly(N-vinyl-γ-sodium aminobutyrate)(PVSA), wh...
新铃兰醛VC缩醛的合成及其抗氧化性能的研究
新铃兰醛 VC(L-抗坏血酸) 新铃兰醛VC缩醛 二苯代苦酰肼自由基
2012/8/10
以对甲苯磺酸为催化剂, N,N-二甲基甲酰胺(DMF)为溶剂,正己烷为带水剂,由新铃兰醛与VC(抗坏血酸)反应合成了新铃兰醛VC缩醛,产物含有约 74% 的A异构体和 26% 的B异构体,其主要化学结构经液相色谱-质谱(LC-MS)、FT-IR、1HNMR 鉴定。主要反应条件为:新铃兰醛与VC物质的量之比1:1.5,催化剂用量为新铃兰醛质量分数的 5%,搅拌回流反应时间 6h。用二苯代苦酰肼自由基...
PSRK模型的修正混合规则及其应用于聚合物溶液汽液平衡的预测
PSRK模式 混合工艺 聚合物
2009/3/25
To extend the PSRK (predictive Soave-Redlich-Kwong equation of state) model to vapor-liquid equilibria of polymer solutions, a new EOS-gE mixing rule is applied in which the term ∑xiln(b/bi) in the PS...
Phase Partition of Acrylonitrile (AN) in Vinylidene Chloride (VDC)/Water System and Its Effect on VDC-AN Copolymer Composition
相分配法 丙烯腈 偏氯乙烯／水体系
2009/3/25
phase partition of acrylvnitrile in the vlnylidene chloride/water system at different temperature and under pressure was studied, A calculation method for average VDC-AN copolymer compeeition with ...
The Insulator-to-Conductor Transition in Sulphonated Poly (Phenylene Oxide) Polymer membranes: Percolation Theory Approach
poly (phenylene oxide) polymer ion exchange membrane percolation threshold
2009/3/25
The Insulator-to-Conductor Transition in Sulphonated Poly (Phenylene Oxide) Polymer membranes: Percolation Theory Approach.
Vapor-Liquid Equilibria for Dimethyl Carbonate-n-Butyl Acetate Binary System at 101.325kPa
Dimethyl Carbonate-n-Butyl Vapor-Liquid Equilibria
2009/3/19
Vapor-Liquid Equilibria for Dimethyl Carbonate-n-Butyl Acetate Binary System at 101.325kPa。
丙烯腈与N-乙烯基吡咯烷酮在H2O/DMSO混合试剂中共聚反应动力学研究
acrylonitrile N-vinylpyrrolidone copolymerization kinetics
2009/3/19
of copolymerization of acrylonitrile(AN) with N-vinylpyrrolidone(NVP) initiated by azodiisobutyronitrile(AIBN) was investigated in H2O/dimethyl sulphoxide(DMSO) mixture between 50℃ and 70℃ under N2 ...
表面光接枝共聚法制备高通量分子印迹膜
分子 聚合物 薄膜技术 MIMs
2009/3/16
Molecular imprinted polymer membranes (MIM) combine the merits of molecular imprint and membrane technology. In this work, a very thin of imprinted polymer that can specifically and selectively absorb...
An experimental apparatus composed of microscope, video camera. image-processing, and mini reactor which can be used for real-time measurement of the growth of polymer particle in gas phase polymeri...
Non-porous superparamagnetic polymer microspheres with epoxy groups were prepared by dispersion polymerization of glycidyl methacrylate (GMA) in the presence of magnetic iron oxide (Fe3O4) nanoparticl...
疏水缔合聚合物的合成及溶液性质研究
合成方法 化学性质 防水聚合物 粘性
2009/3/2
Acrylamide/2-acrylamido alkane sulfonic acid hydrophobic associating copolymers were synthesized by micellar copolymerization. Effects of hydrophobe content, polymer concentration, salinity and surfac...
提高丙烯腈回收率的一种新型急冷工艺和急冷塔
丙烯腈 淬火技术 生产技术
2009/2/25
Quenching process and design of the quenching tower in acrylonitrile production in China were studied in order to decrease the polymerization loss of acrylonitrile in the quenching tower. Based on the...
The surface morphology of Ti-Mg supported catalyst and the polyethylene particles are studied usingscanning electron microscope(SEM) technology. The results show that either the catalyst’s surface or ...