Photo-induced sol–gel synthesis of polymer-supported silsesquioxane membranes

Nagasawa, Hiroki; Nishibayashi, Mai; Kanezashi, Masakoto; Yoshioka, Tomohisa; Tsuru, Toshinori

doi:10.1039/c6ra21161e

Cited by 6 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead of calcination of gels by thermal treatment, a novel approach via photo-induced processing was developed to prepare polymer-supported organosilica membranes at room temperature [46,47]. The effect of UV irradiation on the network formation is important.…”

Section: Pure Organosilica Membranesmentioning

confidence: 99%

Organosilica-Based Membranes in Gas and Liquid-Phase Separation

Ren

Tsuru

2019

Membranes

View full text Add to dashboard Cite

Organosilica membranes are a type of novel materials derived from organoalkoxysilane precursors. These membranes have tunable networks, functional properties and excellent hydrothermal stability that allow them to maintain high levels of separation performance for extend periods of time in either a gas-phase with steam or a liquid-phase under high temperature. These attributes make them outperform pure silica membranes. In this review, types of precursors, preparation method, and synthesis factors for the construction of organosilica membranes are covered. The effects that these factors exert on characteristics and performance of these membranes are also discussed. The incorporation of metals, alkoxysilanes, or other functional materials into organosilica membranes is an effective and simple way to improve their hydrothermal stability and achieve preferable chemical properties. These hybrid organosilica membranes have demonstrated effective performance in gas and liquid-phase separation.

show abstract

Section: Pure Organosilica Membranesmentioning

confidence: 99%

Organosilica-Based Membranes in Gas and Liquid-Phase Separation

Ren

Tsuru

2019

Membranes

View full text Add to dashboard Cite

show abstract

“…More recently, ordering was even achieved upon optimizing irradiation conditions [17]. Other recent studies showed the interest of photoinduced inorganic polymerization for the synthesis of silica particles [18,19], membranes [20], hybrid films [21,22], and dental materials [23]. In this report, we have taken a further step forward and designed an energy-saving, scalable, and fully-photoinduced process where UV radiation has two consecutive roles: i. the formation of silica/surfactant mesostructured film and, ii.…”

Section: Introductionmentioning

confidence: 99%

Scaling-up of mesoporous silica films via an eco-efficient UV processing method. Part 1: Photoinduced mesostructuration

Sibeaud

Paz-Simon

Croutxé‐Barghorn

et al. 2018

Microporous and Mesoporous Materials

View full text Add to dashboard Cite

Designing sustainable and industrially viable processing methods to synthesize ordered mesoporous films is a necessary condition to tap their full potential of applications. In order to respond to this challenge, well-established photoacid-catalyzed sol-gel photopolymerization has been harnessed to prepare large (> 100 cm 2) and micrometer-thick porous silica films possessing a 2D hexagonal mesostructure. Our UV irradiation system consists of two inexpensive and low radiant power fluorescent UV tubes (3 mW cm-2 , 280-380 nm) enclosed in a hygrometric chamber. Precise conditions to promote copolymer/silica hybrid film mesostructuration have been determined as regards relative humidity, film thickness and templating agent concentration. The mesostructured films have been analyzed using an extensive range of techniques including electron microscopy, grazing-incidence small-angle X-ray scattering (GISAXS), and N 2 sorption measurements, and solidstate NMR spectroscopy. Mesoporous silica films with a specific surface area up to 314 m 2 g-1 have been achieved with a very low level of microporosity. Coupling of X-ray diffraction (XRD) and FTIR spectroscopy has enabled to shed light into the photoinduced self-assembly mechanism.

show abstract

“…The incorporation of heat-sensitive functional groups into siloxane-based networks is also difficult to achieve through conventional methods. In limited cases, processing temperatures can be decreased to 100°C or lower by employing acidvapor-assisted Gong et al, 2016) or photoinduced polymerization techniques (Nishibayashi et al, 2015;Nagasawa et al, 2017a); however, the separation performances have not yet reached application level. Therefore, an effective approach to achieve low-temperature fabrication of silica-based membranes is required.…”

Section: Introduction: Microporous Inorganic Membranes For Molecular Separationmentioning

confidence: 99%

Advanced Materials for Polymeric Ultrafiltration Membranes Fabrication and Modification

Muhamad¹,

Nazri²,

Lau³

et al. 2018

Advanced Materials for Membrane Fabrication and Modification

View full text Add to dashboard Cite

This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint.Except as permitted under U.S. Copyright Law, no part of this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers.

show abstract

Photo-induced sol–gel synthesis of polymer-supported silsesquioxane membranes

Abstract: Organically-bridged silsesquioxane membranes are fabricated onto a polymeric nanofiltration membrane via photo-induced sol–gel processing and their molecular separation performance are investigated through pervaporation of azeotropic mixture.

Cited by 6 publications

References 26 publications

Organosilica-Based Membranes in Gas and Liquid-Phase Separation

Organosilica-Based Membranes in Gas and Liquid-Phase Separation

Scaling-up of mesoporous silica films via an eco-efficient UV processing method. Part 1: Photoinduced mesostructuration

Advanced Materials for Polymeric Ultrafiltration Membranes Fabrication and Modification

Contact Info

Product

Resources

About