نتایج جستجو برای: polypropylene grafted maleic anhydride
تعداد نتایج: 23594 فیلتر نتایج به سال:
Preparation of a maleated Fischer–Tropsch paraffin wax and FTIR analysis of grafted maleic anhydride
The variation in the morphology of monolayers at the air/water interface is investigated for two kinds of radiation-modified polysilanes with different structures: poly(diethyl fumarate)-grafted poly(methyl-n-propylsilane) (PMPrS-g-PDEF) and maleic anhydride-grafted PMPrS (PMPrS-g-MAH). PMPrS-g-PDEF has long but sparsely-attached PDEF graft chains, while PMPrS-g-MAH has short but densely-attach...
in this research, the selective oxidation of benzene to maleic anhydride (man) in a fixed-bed reactor was studied. the gas phase catalytic oxidation of benzene was carried outin a laboratory scale fixed bed reactor on the catalysts, which were prepared having two different compositions on silica gel. the effects of temperature, flow rates of benzene and air, and catalyst type on the reaction se...
The aim of the present study was to combat wood decay based on the approach controlled-release biocides from polymers. The possibility of introducing polymer-bonded fungicides into the cell lumens was investigated. The synthesis of ethylene maleic anhydride copolymer con taining pentachlorophenol (penta) and 8-hydroxy quino line (8HQ) in N, N dimethyl formamide is described. It was demonstrat...
linear low density polyethylene (lldpe) was blended with esterified styrene-maleic anhydride (esma) and its physical and mechanical properties were studied. styrene-maleic anhydride (sma) copolymer was synthesized by precipitation reaction. then, sma was esterified by 1-decanol in methylethyl ketone solvent. from the ftir spectrum of esma it is evident that the corresponding peaks of anhydride ...
the nanoparticles of gold doped with various percentage of copper (cu 10%, 25%, 75%) were synthesized by wet-chemical method at room temperature. copper (ii) sulfate and gold (iii) chloride trihydride was taken as the metal precursor and ascorbic acid as a reducing agent and anhydride maleic as surfactant. the reaction is performed with high-speed stirring at room temperature under nitrogen atm...
Butler, Harris, Hartley & Leberman (1967) showed that maleic anhydride could be used for the reversible blocking of amino groups. The maleyl group could be removed because the protonated form of the free carboxyl group catalysed the hydrolysis of the amide bond, presumably by intramolecular general acid catalysis (cf. Bender, Chow & Chloupek, 1958). The present paper reports the effects of intr...
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