WebThe development of advanced adsorbents with high capacity, fast rate, and easy regeneration has great practical application value. In this paper, polystyrene-polymaleic(anhydride) (PSMM-NH 2) hollow microspheres with a high density of amino groups are prepared and used for the efficient adsorption of anionic dyes with the … WebHydrolyzed Polymaleic Anhydride Characteristics. HPMA chemical is a class of polycarboxylic acid scale inhibitors. It can be matched with other corrosion and scale inhibitors. The molecular weight of HPMA is about 600~1200. The aqueous solution is brownish yellow or brownish red, viscous, acidic liquid.

Maleic anhydride, 98+%, Thermo Scientific Chemicals - Fisher Sci

WebUsage: Hydrolyzed Polymaleic Anhydride is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. Hydrolyzed Polymaleic Anhydride has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can … WebVisit ChemicalBook To find more POLY(MALEIC ANHYDRIDE-ALT-1-OCTADECENE)(25266-02-8) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. You can also browse global … siegy stock price today

Poly(maleic anhydride) Polysciences, Inc.

WebA process for the preparation of polymaleic acid by polymerizing maleic anhydride in an aromatic hydrocarbon at from 60.degree. to 200.degree. C., using from 1 to 20% by weight, based on maleic anhydride, of peroxyesters derived from saturated or ethylenically unsaturated carboxylic acids, as the polymerization initiators and hydrolyzing the polymer, … WebIn conclusion, polymaleimide was synthesized by the reaction of polymaleic anhydride with urea at 180 °C via a solvent-free reaction. The conversion of polymaleic anhydride could reach 95%. The structure of polymaleimide was characterized by 1 H-NMR and IR. The proposed method provides a simple, practical and economical synthesis of polymaleimide. WebDescription. Maleic anhydride is used in the preparation of unsaturated polyester resins, 4-butanediol, fumairc acid, tetrahydrofuran and gamma-butyrolactone. It is also used as lubricating oil additives, dispersants, artificial sweeteners, flavor enhancements, floor polishes and corrosion inhibitors. It finds application in personal care ... sieh an.de online shop