Dataset Information

Sustainable aromatic polyesters with 1,5-disubstituted indole units.

ABSTRACT: This work aims to unravel the impact of disubstitution patterns on the physical properties and processing characteristics of indole-based aromatic polyesters. A series of hydroxyl-carboxylate (AB-type) monomers with 1,5-disubstituted indole and 3-6 methylene units was conveniently synthesized and used in bulk polycondensation to yield the corresponding polyesters with decent molecular weight. These new monomers and polyesters showed enhanced thermal stability compared to the previously reported monomers and polyesters with a 1,3-disubstituted indole structure. According to DSC results, these polyesters showed tunable glass transition temperatures (T _g ∼57-80 °C), depending on the length of the aliphatic methylene units. DSC and WAXD measurements revealed that these polymers did not crystalize from melt, but the ones with 3 or 5 methylene units per repeating unit crystalized from solution. Finally, we demonstrated that the new polyesters with 1,5-disubstituted indole units could be crosslinked using sustainable aromatic aldehyde, which could further enhance their thermal properties.

SUBMITTER: Wang P

PROVIDER: S-EPMC9031847 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Sustainable aromatic polyesters with 1,5-disubstituted indole units.

Wang Ping P Zhang Baozhong B

RSC advances 20210401 27

This work aims to unravel the impact of disubstitution patterns on the physical properties and processing characteristics of indole-based aromatic polyesters. A series of hydroxyl-carboxylate (AB-type) monomers with 1,5-disubstituted indole and 3-6 methylene units was conveniently synthesized and used in bulk polycondensation to yield the corresponding polyesters with decent molecular weight. These new monomers and polyesters showed enhanced thermal stability compared to the previously reported ...[more]

PMID: 35479171

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Dataset Information

Sustainable aromatic polyesters with 1,5-disubstituted indole units.

Publications

Sustainable aromatic polyesters with 1,5-disubstituted indole units.

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