1985
DOI: 10.1021/bk-1985-0282.ch016
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Coupling and Capping Reactions on Poly(2,6-dimethyl-1,4-phenylene Oxide)

Abstract: The phenolic hydroxy1 endgroups in poly(2,6-dimethyl -1,4-phenylene oxide) react with various mono, di-and trifunctional acylating (or related) reagents under phase transfer catalysis conditions to produce capped and/or coupled products in high yields. Acetic anhy dride, even at low concentrations, acetylated the hydroxyl endgroups almost quantitatively. Bifunctional reagents (e.g., isophthaloyl chloride) coupled the polymer producing a viscosity increase consistent with a two-fold increase in molecular weight… Show more

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Cited by 5 publications
(2 citation statements)
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“…The reaction of 2,6-dimethylphenol (26DMP) as a monomer of PPE and the structural change of the PPE polymer chain have been studied by many researchers [44,45]. 26DMP reacts with the end of the PPE chain by Cuorganic ligand complex [46 -48] and the PPE chain is known to react with several compounds such as quinine [49].…”
Section: Self-repairing Materials With Inverse Reactionmentioning
confidence: 99%
“…The reaction of 2,6-dimethylphenol (26DMP) as a monomer of PPE and the structural change of the PPE polymer chain have been studied by many researchers [44,45]. 26DMP reacts with the end of the PPE chain by Cuorganic ligand complex [46 -48] and the PPE chain is known to react with several compounds such as quinine [49].…”
Section: Self-repairing Materials With Inverse Reactionmentioning
confidence: 99%
“…Next to blending, also copolymerisation might change the glass transition temperature and improve the processability of PPE. Block copolymers (diblock or triblock) that contain PPE are described mainly in patent literature [3,[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] and are sometimes used as compatibiliser in blends of PPE and a second polymer. For segmented or multi-block copolymers bifunctional PPE segments (PPE-2OH) [22] with a phenolic endgroup at both chain ends are needed.…”
Section: Introductionmentioning
confidence: 99%