Complex Formation and Gelation between Copolymers Containing Pendant Azobenzene Groups and Cyclodextrin Polymers

Takashima, Yoshinori; Nakayama, Tomofumi; Miyauchi, Masahiko; Kawaguchi, Yoshindo; Yamaguchi, Hiroyasu; Harada, Akira

doi:10.1246/cl.2004.890

Cited by 127 publications

(93 citation statements)

References 22 publications

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“…A stimuli-responsive microgel system tuned by ultraviolet (UV) light based on host-guest interactions has been prepared [33][34][35]. Characterization of the photoreversibility of the resulting microgel was performed by transmission electron microscopy (TEM), UV-Vis spectroscopy, and 1 H nuclear magnetic resonance (NMR) measurements.…”

Section: Applications In Producing Functionalized Materialsmentioning

confidence: 99%

“…The microgel displayed reversible size changes upon exposure to UV-Vis irradiation. Supramolecular systems with a wide range of light responsiveness that undergo macroscopic self-assembly based on CD/Azo (azobenzene) host-guest molecular recognition have also been described [33][34][35]. Such photoswitchable self-assembly and photoresponsive properties can be used to produce functionalized materials, which are expected to have wide applicability in a variety of fields, including artificial muscles on the macroscopic scale.…”

Section: Applications In Producing Functionalized Materialsmentioning

confidence: 99%

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Introduction

Huang

Yang

2018

Cyclodextrins

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Section: Applications In Producing Functionalized Materialsmentioning

confidence: 99%

Section: Applications In Producing Functionalized Materialsmentioning

confidence: 99%

Introduction

Huang

Yang

2018

Cyclodextrins

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“…It has a hydroxyl groups located at the top and bottom of the ring. Thus, the hydrophobic cavity of cyclodextrin can be include different hydrophobic compounds (Takashima et al, 2004). Arabic gum is a branched-chain biopolymer and it can be either neutral or slightly acidic aqueous solutions (Ali et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Silan/biopolymer microgels for functionalization of cotton fabric: dual responsive pH and temperature and antibacterial properties

Mohamed¹

2017

J App Pharm Sci

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Biopolymer/chitosan/silan composite wassynthesized in four form by conjugating of chitosan with different biopolymer compounds namely, β-Cyclodextrin (β-CD), Arabic gum, Guar gum and Pullulan in presence of 3-glycidoxypropyltrimethoxysilan (GPTMS) as a cross-linker. Characterisation of the prepared composites has been done through some measurements. FT-IR confirmed the chemical reactions between biopolymers, chitosan andGPTMS.TEM and particle size confirm that, the particles are in small size ranged from 20 -200 µm and have porous structure. Textural properties of the prepared composites were studied and provide that, the microgel with pullulan have the best texture properties than other gels, and gel with guar gum have a worst texture properties. Studding the pH effect found that, the microgels particle size was changing with increasing/decreasing the temperature. The flow properties of the chitosan based microgels at different concentrations and different temperatures were also determined. Treated fabrics with chitosan-based microgels were characterized for their morphological structure, antibacterial properties, water uptake for untreated and treated fabrics at different pHs and temperatures and it is confirmed that, the prepared composites impart a hydrophobicity property to the cotton fabrics.

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“…Azobenzene and poly(ethylene glycol) have been incorporated into various sophisticated systems such as co-polymers [16,17], nanomaterials [18,19], cellulose derivatives [20,21] and cyclodextrin polymers [22,23], in some cases forming supramolecular complexes with interesting properties [24]. Poly(ethylene glycol) moieties provide flexibility and water solubility to the systems to which they are incorporated.…”

Section: Introductionmentioning

confidence: 99%