Article

Synthesis and Self-Assembly of 2nd Generation Dendritic Homopolymers and Copolymers of Polydienes with Different Isomeric Microstructures

  1. Apostolos Avgeropoulos1,2,*,
  2. Sofia Rangou1,
  3. Vahik Krikorian2,
  4. Edwin L. Thomas2

Article first published online: 11 JUL 2008

DOI: 10.1002/masy.200850703

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Nanostructured Polymers and Polymer Nanocomposites

Volume 267, Issue 1, pages 16–20, June 2008

Additional Information

How to Cite

Avgeropoulos, A., Rangou, S., Krikorian, V. and Thomas, E. L. (2008), Synthesis and Self-Assembly of 2nd Generation Dendritic Homopolymers and Copolymers of Polydienes with Different Isomeric Microstructures. Macromol. Symp., 267: 16–20. doi: 10.1002/masy.200850703

Author Information

  1. 1

    Department of Materials Science & Engineering, University of Ioannina, University Campus, 45110 Ioannina, Greece Fax: (+30) 26510 97034;

  2. 2

    Department of Materials Science & Engineering, and Institute of Soldier Nanotechnologies, Massachusetts, Institute of Technology, 77 Mass. Ave., 02139 Cambridge, MA, USA

*Department of Materials Science & Engineering, University of Ioannina, University Campus, 45110 Ioannina, Greece Fax: (+30) 26510 97034;.

Publication History

  1. Issue published online: 11 JUL 2008
  2. Article first published online: 11 JUL 2008

Funded by

  • European Union in the framework of the program “Pythagoras I” of the “Operational Program for Education and Initial Vocational Training” of the 3rd Community Support Framework of the Hellenic Ministry of Education
  • national sources
  • European Social Fund (ESF)

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Keywords:

  • anionic polymerization;
  • gel permeation chromatography (GPC);
  • macromonomers;
  • morphology;
  • TEM

Abstract

Synthesis of 2nd generation dendritic polymeric materials via anionic polymerization procedures in combination with chlorosilane chemistry, consisting either from one polydienic segment (homopolymers) or from two chemically different polydienic components (copolymers), is described. The polydienes used were poly(butadiene) (PB) with ∼90% 1,4-isomerism and poly(isoprene) (PI) with increased 3,4-isomerism (∼60%). Molecular characterization of intermediate products and the final dendritic materials was made with Gel Permeation Chromatography (GPC), Membrane and Vapour Pressure Osmometry (MO and VPO respectively), Gas Chromatography –Mass Spectroscopy (GC-MS) and 1H-Nuclear Magnetic Resonance (1H-NMR) Spectroscopy, leading to the conclusion that they can be considered model polymers. Morphological studies solely with Transmission Electron Microscopy (TEM) have been conducted on two of the four synthesized copolymer samples exhibiting microphase separation between the two polydiene segments.

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