PMID: 9438845Jan 28, 1998Paper

Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores

Science
D ZhaoG D Stucky

Abstract

Use of amphiphilic triblock copolymers to direct the organization of polymerizing silica species has resulted in the preparation of well-ordered hexagonal mesoporous silica structures (SBA-15) with uniform pore sizes up to approximately 300 angstroms. The SBA-15 materials are synthesized in acidic media to produce highly ordered, two-dimensional hexagonal (space group p6mm) silica-block copolymer mesophases. Calcination at 500 degrees C gives porous structures with unusually large interlattice d spacings of 74.5 to 320 angstroms between the (100) planes, pore sizes from 46 to 300 angstroms, pore volume fractions up to 0.85, and silica wall thicknesses of 31 to 64 angstroms. SBA-15 can be readily prepared over a wide range of uniform pore sizes and pore wall thicknesses at low temperature (35 degrees to 80 degrees C), using a variety of poly(alkylene oxide) triblock copolymers and by the addition of cosolvent organic molecules. The block copolymer species can be recovered for reuse by solvent extraction with ethanol or removed by heating at 140 degrees C for 3 hours, in both cases, yielding a product that is thermally stable in boiling water.

References

Aug 16, 1996·Science·I A AksayS M Gruner
Feb 10, 1995·Science·P T Tanev, T J Pinnavaia

❮ Previous
Next ❯

Citations

Apr 17, 2001·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Z LiuR Ryoo
Dec 20, 2002·Angewandte Chemie·Do Trong On, Serge Kaliaguine
Jan 4, 2007·Analytical and Bioanalytical Chemistry·Yuge LiuWenhua Hou
Jul 22, 2008·Analytical and Bioanalytical Chemistry·Cristina IspasSilvana Andreescu
Apr 16, 2010·Analytical and Bioanalytical Chemistry·Brian J Melde, Brandy J Johnson
Jan 20, 2005·Applied Microbiology and Biotechnology·Kengo SakaguchiFujio Mizukami
May 23, 2008·Journal of Materials Science. Materials in Medicine·V CaudaE Garrone
Oct 8, 2008·Journal of Materials Science. Materials in Medicine·K C SouzaE M B Sousa
Jul 26, 2011·Journal of Materials Science. Materials in Medicine·Shou-Cang ShenReginald Beng Hee Tan
Mar 1, 2012·Journal of Materials Science. Materials in Medicine·Jasmin Hum, Aldo R Boccaccini
Aug 24, 2010·Nanoscale Research Letters·An-Ya LoCheng-Tzu Kuo
Aug 24, 2010·Nanoscale Research Letters·Xiaoyu WangJiantai Ma
Dec 21, 2010·Nanoscale Research Letters·Y L XueQ Jiang
Aug 6, 2008·Applied Biochemistry and Biotechnology·Peng WangHuey-Min Hwang
Nov 14, 2013·Biosensors & Bioelectronics·Chi-Chang LinHsien-Chang Chang
Apr 10, 2004·Advances in Colloid and Interface Science·Valter Castelvetro, Cinzia De Vita
Jun 25, 2013·European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences·Yanzhuo ZhangLusi Li
Aug 29, 2013·European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences·Robert J AhernAbina M Crean
Sep 19, 2009·Journal of the American Society for Mass Spectrometry·Xiuhua LiDonghao Li
Nov 5, 2013·Journal of Colloid and Interface Science·Emma M BjörkMagnus Odén
May 7, 2013·Journal of Hazardous Materials·Tung Xuan BuiHeechul Choi
Aug 27, 2013·Solid State Nuclear Magnetic Resonance·Torsten GutmannGerd Buntkowsky
Nov 1, 2005·Journal of Colloid and Interface Science·Tatsuhiko MiyataMasaru Nakaiwa
May 3, 2003·Journal of Colloid and Interface Science·Dae-Geun Choi, Seung-Man Yang
Aug 12, 2003·Journal of Colloid and Interface Science·Gang ZhangJiacong Shen
Jun 5, 2012·Journal of Environmental Sciences (China)·Weiwei ZhangJingjing Wu
Oct 23, 2001·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·G WirnsbergerG D Stucky
Aug 23, 2011·ACS Applied Materials & Interfaces·Yuqiang QianAndreas Stein
Nov 19, 2011·ACS Applied Materials & Interfaces·Chih-Chau HwangJames M Tour
Aug 2, 2012·ACS Applied Materials & Interfaces·Mi Mi WanJian Hua Zhu
Feb 27, 2013·ACS Applied Materials & Interfaces·Lingxing ZengMingdeng Wei
May 8, 2013·ACS Applied Materials & Interfaces·Guntram SchwarzDirk G Kurth
May 28, 2013·ACS Applied Materials & Interfaces·Guixin YangPiaoping Yang
Sep 12, 2013·ACS Applied Materials & Interfaces·Xiao-Yan LiuXiao-Qin Liu
Dec 12, 2012·Accounts of Chemical Research·Hua Chun Zeng
Mar 15, 2013·Accounts of Chemical Research·Iris E RaudaSarah H Tolbert
Jun 9, 2011·Chemical Reviews·Matthew R JonesChad A Mirkin
Oct 28, 2011·Environmental Science & Technology·Nicholas R Stuckert, Ralph T Yang
Jan 19, 2012·Environmental Science & Technology·Ming ZhaoAndrew T Harris

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Für Pharmazeutische Verfahrenstechnik E.V
C CharnayJ M Devoisselle
© 2021 Meta ULC. All rights reserved