sodium polymerization
1.A sodium polyacrylate superabsorbent was synthesized by static aqueous solution polymerization method and its absorbency was similar to the superabsorbent synthesized by dynamic aqueous solution polymerization method.
3.Under the catalysis of sodium hydroxide solution,TBA epoxy resin was prepared by stepwise polymerization by use of tetrabromobisphenol A(TBA) and epichlorohydrin(ECH).
4.In this paper, self-made asymmetric ethers and sodium alkoxides were used as modifiers in anionic polymerization of polybutadiene, in which asymmetric ethers include methyl morpholinoethyl ether(MOEM), ethyl morpholinoethyl ether(EOEM), butyl morpholinoethyl ether(BTE), tetrahydrofufury ethyl ether(ETE) and tetrahydrofufury butyl ether(BTE);
5.Optimal PPS synthesizing conditions were found through adopting orthogonal test method, which involved the reaction temperature 220℃ at earlier stage and 260 ℃ in later stage, solvent consumption 500 ml/(mol p-DCB), consumption of sodium sulfide 1.00 mol/(mol p-DCB) and polymerization aids 40 g/(mol p-DCB).
6.Intelligent P(AM-NaA)(Polyacrylamide-sodium acrylate) copolymer hydrogel was synthesizedby ￣(60)Coy-Y ray radiation polymerization in aqueous solution,and the copmposition was studiedby FTIR spectrograph.
7.A super-absorbent resin of starch-sodium acrylate graft copolymer was synthesized by the method of microwave polymerization using N,N′-methylenebis-acrylamide as a crosslinking agent and ammonium persulfate as an initiator.
8.The polymerization of acrylonitrile catalyzed by [(Bu t Cp) 2NdMe] 2/quarternary ammonium salt(sodium phenolate、sodium naptholate) was first studied.
9.Super-intensive & Super-absorbent Resin Produced by Polymerization of Acrylic Acid Sodium with Vinyl Acetic Ester
10.In this paper, poly (acylic -acylamide)/sodium humic acid (PAA -AM/SH) superabsorbent composite were synthesized by aqueous solution polymerization based on acrylic acid (AA), acylamide(AM) and sodium humic acid(SH). Water absorbency in aqueous solutions, water retention capability and release property of humic acid of PAA-AM/SH superabsorbent composite were investigated.
