Photoinitiated Free‐Radical Polymerization of 4,5,6,7‐Tetrahalogenated Fluoresceins | Zendy

Jung Young Jae | Zendy; Nganga Joseph B. | Zendy; Cho JangHoon | Zendy; Lee HongIn | Zendy; Lee Jungkyu K. | Zendy

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Photoinitiated Free‐Radical Polymerization of 4,5,6,7‐Tetrahalogenated Fluoresceins

Author(s) -

Jung Young Jae,

Nganga Joseph B.,

Cho JangHoon,

Lee HongIn,

Lee Jungkyu K.

Publication year - 2021

Publication title -

chemistry – an asian journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.18

H-Index - 106

eISSN - 1861-471X

pISSN - 1861-4728

DOI - 10.1002/asia.202100619

Subject(s) - polymerization , photochemistry , triethanolamine , halogen lamp , photocatalysis , photopolymer , halogen , chemistry , polymer chemistry , ethylene glycol , cationic polymerization , catalysis , organic chemistry , polymer , analytical chemistry (journal) , physics , alkyl , optics

We demonstrated the photoredox catalytic performances of fluorescein derivatives, bearing heavy halogen atoms (Br or I) on a benzoic acid group, using photoinitiated free‐radical polymerization. 4,5,6,7‐Tetrabromofluorescein and 4,5,6,7‐tetraiodofluorescein were used as visible‐light‐photoredox catalysts to initiate polymerization of poly(ethylene glycol) diacrylate and N ‐vinylpyrrolidone in the presence of triethanolamine under aerobic conditions. Their photocatalytic performances were evaluated by the hydrogelation of photopolymerization both on the surface of an agarose film and in a liquid solution. The polymerization degree increased considerably in the following order: tetraiodofluorescein

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