Pentiptycene Polymer/Single-Walled Carbon Nanotube Complexes: Applications in Benzene, Toluene, and o-Xylene Detection.

ACS Nano
Shao-Xiong Lennon LuoTimothy M Swager

Abstract

We report the dispersion of single-walled carbon nanotubes (SWCNTs) using pentiptycene polymers and their use in chemiresistance-based and QCM-D sensors. Poly(p-phenylene ethynylene)s (PPEs) incorporating pentiptycene moieties present a concave surface that promotes π-π interactions and van der Waals interactions with SWCNTs. In contrast to more common polymer-dispersing mechanisms that involve the wrapping of polymers around the SWCNTs, we conclude that the H-shape of pentiptycene groups and the linear rigid-rod structure creates a slot for nanotube binding. UV-vis-NIR, Raman, and fluorescence spectra and TEM images of polymer/SWCNTs support this dispersion model, which shows size selectivity to SWCNTs with diameters of 0.8-0.9 nm. Steric bulk on the channels is problematic, and tert-butylated pentiptycenes do not form stable dispersions with SWCNTs. This result, along with the diameter preference, supports the model in which the SWCNTs are bound to the concave clefts of the pentiptycenes. The binding model suggests that the polymer/SWCNTs complex creates galleries, and we have demonstrated the binding of benzene, toluene, and o-xylene (BTX) vapors as the basis for a robust, sensitive, and selective sensing platform for BTX de...Continue Reading

References

Jul 18, 2001·Journal of the American Chemical Society·R J ChenH Dai
Aug 1, 2002·Journal of the American Chemical Society·Jian ChenGilbert C Walker
Aug 31, 2002·Angewandte Chemie·Alexander StarJ Fraser Stoddart
Dec 3, 2002·Science·Sergei M BachiloR Bruce Weisman
Apr 15, 2003·Nature Materials·Ming ZhengNancy G Tassi
Apr 17, 2003·Proceedings of the National Academy of Sciences of the United States of America·Robert J ChenHongjie Dai
Sep 13, 2003·Science·Michael S StranoRichard E Smalley
Nov 13, 2003·Journal of the American Chemical Society·Timothy M Long, Timothy M Swager
Jun 18, 2004·Organic Letters·Alexander StarJ Fraser Stoddart
Feb 17, 2005·Journal of the American Chemical Society·Maogen Zhang, Waldemar Gorski
Aug 25, 2005·Journal of the American Chemical Society·Hye-Mi SoJeong-O Lee
Oct 20, 2006·The Journal of Physical Chemistry. B·Alexander StarJean-Christophe P Gabriel
Dec 1, 2006·Chemical Communications : Chem Comm·Nicole A RiceYuming Zhao
Mar 28, 2007·Chemical Reviews·Samuel W ThomasTimothy M Swager
Feb 26, 2008·Journal of the American Chemical Society·Jeong-Yuan HwangRobin J Nicholas
Mar 21, 2008·Chemical Communications : Chem Comm·Jye-Shane Yang, Jyu-Lun Yan
Apr 1, 2008·Journal of the American Chemical Society·Fei WangTimothy M Swager
May 30, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Paul J MolinoRichard Wetherbee
Jul 22, 2008·Angewandte Chemie·Douglas R Kauffman, Alexander Star
Jul 26, 2008·Nature Nanotechnology·Adrian NishRobin J Nicholas
Dec 23, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Adam L J OlssonPrashant K Sharma
Mar 26, 2010·Journal of the American Chemical Society·Lakshmi N CellaAshok Mulchandani
Aug 13, 2011·Journal of the American Chemical Society·Anna Llanes-PallasDavide Bonifazi
Jun 14, 2012·Chemistry : a European Journal·Peter HammershøjJørn Bolstad Christensen
Nov 1, 2012·Chemical Society Reviews·Georgios SakellariouDurairaj Baskaran
Jul 28, 2013·Analytical Chemistry·Kelvin M Frazier, Timothy M Swager
Aug 21, 2013·Environmental Science & Technology·Xiaojun Chang, Dermont C Bouchard
May 7, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Ronn S FriedlanderJoanna Aizenberg
Nov 26, 2015·Advanced Materials·Gregory D GutierrezTimothy M Swager
Dec 15, 2015·Angewandte Chemie·John F FennellTimothy M Swager
Mar 10, 2016·Small·M Meyyappan

❮ Previous
Next ❯

Related Concepts

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.