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Use of a novel initiator for synthesis of amino-end functionalized polystyrene (NH 2-PS) by atom transfer radical polymerization

Pourjavadi, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1007/s10965-011-9752-x
  3. Publisher: 2012
  4. Abstract:
  5. Here we report a versatile new method for endfunctionalizing polystyrene. In order to produce polystyrene with an amino end group, 2-(3-bromo-3- phenylpropyl) isoindoline-1,3-dione was synthesized and used as a novel initiator for ATRP. After ATRP polymerization, tri-n-butyltin hydride ((n-Bu) 3SnH) reductively replace existing halogens on polymer chains by hydrogen. Finally, the phthaloyl groups on polymer backbone were cleaved by treatment with hydrazine yielding amino terminated polystyrene. A polymer with M n≈10,350 and M w/M n01.17 was obtained. Therefore, this method allows the preparation of amino end functionalized polystyrene of narrow polydispersity with complete degree of functionalization
  6. Keywords:
  7. Amino-end polystyrene, novel initiator ; Atom transfer radical polymerization (ATRP) ; Amino-terminated ; Degree of functionalization ; End groups ; End-functionalization ; Functionalized ; Polymer backbones ; Polymer chains ; Tri-n-butyltin ; Hydrogen ; Polymerization ; Polymers ; Polystyrenes ; Atom transfer radical polymerization
  8. Source: Journal of Polymer Research ; Volume 19, Issue 1 , January , 2012 ; 10229760 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs10965-011-9752-x#page-1