Controlled encapsulation of photoresponsive macromolecules in porous coordination polymer

Takashi Uemura, Gosuke Washino, Nobuhiro Yanai, Susumu Kitagawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A photoresponsive controlled adsorption system based on a porous coordination polymer (PCP) was fabricated, using azobenzene tethered with poly(ethylene glycol) (PEG-AB) as macromolecular guests. Specific adsorption behavior of trans-PEG-AB into the nanochannels of a PCP was observed in an EtOH medium. When this composite was irradiated with UV light in EtOH, isomerization of PEG-AB from the trans to the cis form resulted in release of PEG-AB because of the large changes in the molecular shape and solubility of PEG-AB. Subsequent visible light irradiation induced photoisomerization of PEG-AB, which led to readsorption of PEG-AB into the nanochannels.

Original languageEnglish
Pages (from-to)222-223
Number of pages2
JournalChemistry Letters
Volume42
Issue number3
DOIs
Publication statusPublished - Feb 25 2013

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Macromolecules
Encapsulation
Polyethylene glycols
Polymers
Adsorption
Photoisomerization
Isomerization
Ultraviolet radiation
Solubility
Irradiation
Composite materials

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Controlled encapsulation of photoresponsive macromolecules in porous coordination polymer. / Uemura, Takashi; Washino, Gosuke; Yanai, Nobuhiro; Kitagawa, Susumu.

In: Chemistry Letters, Vol. 42, No. 3, 25.02.2013, p. 222-223.

Research output: Contribution to journalArticle

Uemura, Takashi ; Washino, Gosuke ; Yanai, Nobuhiro ; Kitagawa, Susumu. / Controlled encapsulation of photoresponsive macromolecules in porous coordination polymer. In: Chemistry Letters. 2013 ; Vol. 42, No. 3. pp. 222-223.
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