EdenteV2, Main, Exploration, bibRecord, 002A98

Light‐Harvesting Organic Photoinitiators of Polymerization

Identifieur interne : 002A98 ( Main/Exploration ); précédent : 002A97; suivant : 002A99

Light‐Harvesting Organic Photoinitiators of Polymerization

Auteurs : Jacques Lalevée [France] ; Mohamad-Ali Tehfe [France] ; Frédéric Dumur [France] ; Didier Gigmes [France] ; Bernadette Graff [France] ; Fabrice Morlet-Savary [France] ; Jean-Pierre Fouassier [France]

Source :

Macromolecular Rapid Communications [ 1022-1336 ] ; 2013-02-12.

RBID : ISTEX:D5D2D9A5A81D30E405F682AF0EB4E125086A4FCA

Descripteurs français

Wicri :
- topic : Photochimie, Polymère.

English descriptors

Abstract

Two new photoinitiators with unprecedented light absorption properties are proposed on the basis of a suitable truxene skeleton where several UV photoinitiators PI units such as benzophenone and thioxanthone are introduced at the periphery and whose molecular orbitals MO can be coupled with those of the PI units: a red‐shifted absorption and a strong increase of the molecular extinction coefficients (by a ≈ 20–1000 fold factor) are found. These compounds are highly efficient light‐harvesting photoinitiators. The scope and practicality of these photoinitiators of polymerization can be dramatically expanded, that is, both radical and cationic polymerization processes are accessible upon very soft irradiation conditions (halogen lamp, LED…︁) thanks to the unique light absorption properties of the new proposed structures.

Url:

https://api.istex.fr/document/D5D2D9A5A81D30E405F682AF0EB4E125086A4FCA/fulltext/pdf

DOI: 10.1002/marc.201200578

Affiliations:

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Le document en format XML

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<term>Rapid communications</term>
<term>Reference system</term>
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<term>Soft irradiation conditions</term>
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<front><div type="abstract" xml:lang="en">Two new photoinitiators with unprecedented light absorption properties are proposed on the basis of a suitable truxene skeleton where several UV photoinitiators PI units such as benzophenone and thioxanthone are introduced at the periphery and whose molecular orbitals MO can be coupled with those of the PI units: a red‐shifted absorption and a strong increase of the molecular extinction coefficients (by a ≈ 20–1000 fold factor) are found. These compounds are highly efficient light‐harvesting photoinitiators. The scope and practicality of these photoinitiators of polymerization can be dramatically expanded, that is, both radical and cationic polymerization processes are accessible upon very soft irradiation conditions (halogen lamp, LED…︁) thanks to the unique light absorption properties of the new proposed structures.</div>
</front>
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Light‐Harvesting Organic Photoinitiators of Polymerization

Light‐Harvesting Organic Photoinitiators of Polymerization

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri