Controlled encapsulation of photoresponsive macromolecules in porous coordination polymer

Takashi Uemura; Gosuke Washino; Nobuhiro Yanai; Susumu Kitagawa

doi:10.1246/cl.2013.222

Controlled encapsulation of photoresponsive macromolecules in porous coordination polymer

Takashi Uemura, Gosuke Washino, Nobuhiro Yanai, Susumu Kitagawa

Research output: Contribution to journal › Article › peer-review

12 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 language	English
Pages (from-to)	222-223
Number of pages	2
Journal	Chemistry Letters
Volume	42
Issue number	3
DOIs	https://doi.org/10.1246/cl.2013.222
Publication status	Published - 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/cl.2013.222

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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.",

author = "Takashi Uemura and Gosuke Washino and Nobuhiro Yanai and Susumu Kitagawa",

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AU - Washino, Gosuke

AU - Yanai, Nobuhiro

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AB - 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.

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Controlled encapsulation of photoresponsive macromolecules in porous coordination polymer

Abstract

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