Mercaptopropyl Functionalized Polymethylsilsesquioxane Microspheres Prepared by Co-Condensation Method as Organosilica-Based Chromatographic Packings

Mercaptopropyl Functionalized Polymethylsilsesquioxane Microspheres Prepared by Co-Condensation... Chromatographia (2017) 80:1287–1297 DOI 10.1007/s10337-017-3349-4 ORIGINAL Mercaptopropyl Functionalized Polymethylsilsesquioxane Microspheres Prepared by Co‑Condensation Method as Organosilica‑Based Chromatographic Packings 1 1 1 1 Jiali Li  · Zhixia Huo  · Lei Chen  · Qian‑Hong Wan   Received: 24 March 2017 / Revised: 25 June 2017 / Accepted: 30 June 2017 / Published online: 13 July 2017 © Springer-Verlag GmbH Germany 2017 Abstract Mercaptopropyl functionalized polymethyl- Introduction silsesquioxane microspheres have been prepared by a two- step acid/base catalyzed hydrolysis and co-condensation Polysilsesquioxanes, also referred to as organosilicas, are of methyltrimethoxysilane (MTMS) and mercaptopropyl- an interesting class of materials with structure charac- trimethoxysilane (MpTMS) precursors. The mercaptopro- terized by random networks of crosslinked silsesquiox- pyl loading of the microspheres is controlled by regulating ane units with formula (RSiO ) where R is the organic 1.5 n, the ratio of MpTMS to MTMS in the reaction feedstock. substituent. Compared with inorganic silica (SiO ), these A pronounced decrease in surface area, pore volume, and hybrid materials produced by hydrolysis and condensa- pore size with increasing mercaptopropyl loading was tion of organic functional trialkoxysilane monomers exhibit observed and a transition in pore structure from mesopores remarkably enhanced chemical, electrical, and mechanical to micropores/nearly nonporous occurred at mole fractions properties, and, therefore, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chromatographia Springer Journals

Mercaptopropyl Functionalized Polymethylsilsesquioxane Microspheres Prepared by Co-Condensation Method as Organosilica-Based Chromatographic Packings

Loading next page...
 
/lp/springer_journal/mercaptopropyl-functionalized-polymethylsilsesquioxane-microspheres-hRhU0mq0qP
Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Chemistry; Chromatography; Proteomics; Pharmacy; Laboratory Medicine; Analytical Chemistry
ISSN
0009-5893
eISSN
1612-1112
D.O.I.
10.1007/s10337-017-3349-4
Publisher site
See Article on Publisher Site

Abstract

Chromatographia (2017) 80:1287–1297 DOI 10.1007/s10337-017-3349-4 ORIGINAL Mercaptopropyl Functionalized Polymethylsilsesquioxane Microspheres Prepared by Co‑Condensation Method as Organosilica‑Based Chromatographic Packings 1 1 1 1 Jiali Li  · Zhixia Huo  · Lei Chen  · Qian‑Hong Wan   Received: 24 March 2017 / Revised: 25 June 2017 / Accepted: 30 June 2017 / Published online: 13 July 2017 © Springer-Verlag GmbH Germany 2017 Abstract Mercaptopropyl functionalized polymethyl- Introduction silsesquioxane microspheres have been prepared by a two- step acid/base catalyzed hydrolysis and co-condensation Polysilsesquioxanes, also referred to as organosilicas, are of methyltrimethoxysilane (MTMS) and mercaptopropyl- an interesting class of materials with structure charac- trimethoxysilane (MpTMS) precursors. The mercaptopro- terized by random networks of crosslinked silsesquiox- pyl loading of the microspheres is controlled by regulating ane units with formula (RSiO ) where R is the organic 1.5 n, the ratio of MpTMS to MTMS in the reaction feedstock. substituent. Compared with inorganic silica (SiO ), these A pronounced decrease in surface area, pore volume, and hybrid materials produced by hydrolysis and condensa- pore size with increasing mercaptopropyl loading was tion of organic functional trialkoxysilane monomers exhibit observed and a transition in pore structure from mesopores remarkably enhanced chemical, electrical, and mechanical to micropores/nearly nonporous occurred at mole fractions properties, and, therefore,

Journal

ChromatographiaSpringer Journals

Published: Jul 13, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off