01494nas a2200157   4500008004100000022001400041245004900055210004300104260008900147300000800236520093600244100002401180700002501204700002401229856008301253       2008                        eng d  a1618-722900aPoly(4-methyl-1-pentene)/MWNT nanocomposites0 aPoly4methyl1penteneMWNT nanocomposites  a1, QUAI LEZAY-MARNESIA, F067000 STRASBOURG, FRANCEbEUROPEAN POLYMER FEDERATIONcJUL  a0793 a<p>Nanocomposites of poly(4-methyl-1-pentene) (PMP) with various weight fractions of multiwall carbon nanotubes (MWNT's) were prepared by melt compounding. The nanocomposites are characterized for structure using scanning electron microscopy. The viscoelastic behavior of the nanocomposites is investigated in solid as well as melt state. The study reveals a significant increase in storage modulus especially in the rubbery regime of the polymer matrix and reduced tan delta. Rheological properties in melt show that the complex viscosity and shear storage modulus are increased as a result of incorporation of MWNT. A systematic decrease in the cross over frequency is noted which is attributed to the increased relaxation time. In dielectric analysis, composition dependent enhanced permittivity and conductivity are observed. The thermal stability of the polymer is found to be significantly improved in presence of MWNT's.</p>1 aPatil, Prashant, A.1 aWanjale, Santosh, D.1 aJog, Jyoti, Prakash  uhttps://library.ncl.res.in/content/poly4-methyl-1-pentenemwnt-nanocomposites-0