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SUMMARY:Morphogenesis of conjugated polymers by epitaxy: from highly orien
 ted films to nano-structured hybrid materials and shish-kebab fibers - Mar
 tin Brinkmann\, Institut Charles Sadron CNRS\, France
DTSTART:20110201T150000Z
DTEND:20110201T160000Z
UID:TALK27921@talks.cam.ac.uk
CONTACT:Jenny Clark
DESCRIPTION:Epitaxial growth of polymers has been widely used for the orie
 ntation of « classical » polymers e.g. polyolefins\, opening the route t
 o advanced structural investigations using Transmission Electron Microscop
 y (TEM) (1). More recently\, epitaxy has been used to investigate the stru
 cture and the crystallization of regioregular poly(3-alkylthiophene)’s (
 P3AT) (2-4). In particular\, the dependence of the semi-crystalline struct
 ure on the macromolecular parameters have been highlighted (3\,4). The use
  of advanced electron diffraction analysis on highly oriented epitaxied fi
 lms opened the route to a first structural model of P3HT (5). The semi-cry
 stalline structure of P3HT was used as a scaffold to grow highly oriented 
 and nanostructured thin films of hybrid materials comprising various inorg
 anic nanoparticles (FePt\, CdSe\, Au)(6). Epitaxy has been further used to
  grow highly oriented and nanostructured P3AT fibers with a so-called shis
 h-kebab morphology (7).\n\nReferences\n1. Wittmann\, J. C. and Lotz\, B. P
 rog. Polym. Sci. 1990\, 15\, 909-948\n2. Brinkmann\, M. and Wittmann\, J.-
 C. Adv. Mater. 2006\, 18\, 860.\n3. Brinkmann\, M. and Rannou\, P. Adv. Fu
 nct. Mater.\, 2007\, 17\, 101.\n4. Brinkmann\, M. and Rannou\, P. Macromol
 ecules 2009\, 42\, 1125\n5. N. Kaynkid\, S. Uttiya\, M. Brinkmann\, Macrom
 olecules\, 2010\, 43\,\n6. Brinkmann\, M.\; Aldakov\, D. and Chandezon\, F
 . Adv. Mat. 2007\, 19\, 3812.\n7. M. Brinkmann\, M.\; F. Chandezon\, F. Ju
 lien-Raban\, C. and Pansu R. P. Adv. Funct. Mat.\n2009\, 19\, 2759.\n
LOCATION:Small Lecture Theatre\, Cavendish Laboratory\, Department of Phys
 ics
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