Synthesis of a branched poly(phenylene ethylene) with bromomethyl groups as an organosoluble and functional parylene

We synthesized a branched poly(phenylene ethylene) (BPPE) with bromomethyl groups from 1,3,5‐tris(bromomethyl)benzene derivatives via the Wurtz coupling reaction. In the case of 1,3,5‐tris(bromomethyl)‐2,4,6‐trimethoxybenzene as a monomer, the obtained polymer (Mn = 6100, Mw/Mn = 1.9) had bromomethy...

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Bibliographic Details
Published in:Journal of applied polymer science 2012-03, Vol.123 (5), p.2775-2780
Main Authors: Kobayashi, Ataru, Sumi, Kentaro, Konishi, Gen-ichi
Format: Article
Language:English
Subjects:
Applied sciences
Branched
branched polymer
Derivatives
Ethylene
Exact sciences and technology
functional polymer
Hydroxyl groups
Joining
Manganese
Materials science
Monomers
Organic polymers
parylene
parylene, Wurtz coupling
Physicochemistry of polymers
poly(phenylene ethylene)
Polycondensation
Polymers
Preparation, kinetics, thermodynamics, mechanism and catalysts
Synthesis
Wurtz coupling
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Summary:We synthesized a branched poly(phenylene ethylene) (BPPE) with bromomethyl groups from 1,3,5‐tris(bromomethyl)benzene derivatives via the Wurtz coupling reaction. In the case of 1,3,5‐tris(bromomethyl)‐2,4,6‐trimethoxybenzene as a monomer, the obtained polymer (Mn = 6100, Mw/Mn = 1.9) had bromomethyl groups. The 1HNMR analysis showed that a very large number of unreacted bromomethyl groups (Ph‐CH2Br) remained in the BPPE; the reaction of this polymer with phenolic hydroxyl groups proceeded quantitatively. This suggested that BPPEs can be functionalized using unreacted bromomethyl groups, making them a very attractive starting point for the creation of functionalized BPPEs with further enhanced processability. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.34652