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Title: Modifiable poly(p-phenylene vinylene) copolymers towards functional conjugated materials
Authors: Zaquen, Neomy
Verstraete, Kelly
Lutsen, Laurence
Vanderzande, Dirk
Junkers, Thomas
Issue Date: 2016
Citation: POLYMER CHEMISTRY, 7(29), p. 4771-4781
Abstract: The copolymerization behavior of poly[2-methoxy-5-(3,7-dimethyloctyloxy)-p-phenylene vinylene] (MDMO-PPV) with poly[2-methoxy-5-(carboxypentyloxy)-p-phenylene vinylene] (CPM-PPV) and poly [2,5-dicyano-p-phenylene vinylene] (CN-PPV) in the anionic sulfinyl precursor route is studied and copolymerization parameters are determined. (MDMO/CPM)-PPV shows similar reactivity ratios for both monomers - r(1) = 0.74 +/- 0.09 and r(2) = 0.90 +/- 0.10 - when reactions were performed to almost full conversion (> 90%). Kinetics of (MDMO/CN)-PPV on the other hand clearly indicate the preference to fully enrich the copolymer with MDMO as r(1) = 0.65 +/- 0.16 and r(2) = 0.015 +/- 0.02. Although deviations from the ideal behavior are observed for (MDMO/CN)-PPV, already a small amount of CN leads to significant difference in absorption and emission of the material, allowing to tune the color of the material. Further, post polymerization modification via transesterification of the CPM groups with poly(ethylene glycol) (PEG) or propargyl alcohol via the DCC/DMAP procedure leads to a versatile way of synthesizing a variety of (water soluble) PPV copolymers, without affecting the optical properties of the PPV materials. All reactions are carried out on the anionic polymerization pathway of the sulfinyl route, hence allowing to incorporate these polarity and wavelength tunable PPVs into more complex structures.
Notes: [Zaquen, N.; Verstraete, K.; Junkers, T.] Hasselt Univ, Inst Mat Res IMO, Polymer React Design PRD Grp, Martelarenlaan 42, B-3500 Hasselt, Belgium. [Lutsen, L.; Vanderzande, D.; Junkers, T.] IMEC Associated Lab IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. [Lutsen, L.; Vanderzande, D.] Hasselt Univ, Inst Mat Res IMO, Design & Synth Organ Semicond Grp, Martelarenlaan 42, B-3500 Hasselt, Belgium.
URI: http://hdl.handle.net/1942/22053
DOI: 10.1039/c6py00688d
ISI #: 000379875000007
ISSN: 1759-9954
Category: A1
Type: Journal Contribution
Validation: ecoom, 2017
Appears in Collections: Research publications

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