Browsing by Subject "Polymers and Plastics"

Now showing items 1-4 of 4

    • Effect of stirring on photoinitiated polymerization 
      Zanocco Loyola, Antonio; Garrido, J.; Lissi Gervaso, Eduardo A. (1988)
      The polymerization of methyl methacrylate photosensitized by benzion methyl ether over a wide range of initiator absorbances was investigated. Both the polymerization rate and the polymer molecular weight distribution are ...
    • Functionalization of polypropylene by grafting with itaconic acid 
      Yazdani-Pedram Zobeiri, Mehrdad; Vega, Héctor; Quijada Abarca, Juan (Wiley-VCH Verlag, 1996)
      Grafting of polypropylene was carried out in both boiling xylene and decalin as solvent medium with itaconic acid (2-methylenesuccinic acid) as functional polar monomer using 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane ...
    • Synthesis of polymeric organic-inorganic hybrid materials. Partially deacetylated chitin-silica hybrid 
      Retuert, Jaime; Nuñez, Alicia; Martínez, Francisco; Yazdani-Pedram Zobeiri, Mehrdad (Wiley-VCH Verlag, 1997)
      This work reports the synthesis of a novel polymeric organic-inorganic hybrid. The inorganic component is a silica network obtained by controlled hydrolysis of tetraethyl orthosilicate via sol-gel process and the organic ...
    • The influence of the transition metal and the heteroatomic‐bridge on the action of metallocene/methyl ... 
      Quijada Abarca, Juan; Dupont, Jairton; Silveira, Dione Corrêa; Miranda, Márcia S.Lacerda; Scipioni, Rosângela B. (1995)
      This work reports a comparative study of the catalytic behaviour for a series of metallocenes derived from Ti, Zr, Hf and Nb, which after activation with methylaluminoxane can polymerize ethylene. Results show that the Zr ...