Cited Article: Ghosh, S. Carbon nanotube flow sensors
Alert Expires: 22 OCT 2009
Number of Citing Articles: 2 new records this week (2 in this e-mail)
Organization ID: 3b97d1bbc1878baed0ab183d8b03130b
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Title:
Investigation of liquid sensing mechanism of poly(lactic acid)/multi-walled carbon nanotube composite films
Authors:
Kobashi, K; Villmow, T; Andres, T; Haussler, L; Poetschke, P
Author Full Names:
Kobashi, Kazufumi; Villmow, Tobias; Andres, Timo; Haeussler, Liane; Poetschke, Petra
Source:
SMART MATERIALS & STRUCTURES 18 (3): Art. No. 035008 MAR 2009
Language:
English
Document Type:
Article
KeyWords Plus:
IMMISCIBLE POLYMER BLENDS; ORGANIC-SOLVENT VAPORS; GAS SENSOR; CRYSTALLIZATION BEHAVIOR; ELECTRICAL-CONDUCTIVITY; ELECTRONIC-PROPERTIES; MOLECULAR-TRANSPORT; BUTADIENE RUBBER; BLACK; SENSITIVITY
Abstract:
The liquid sensing mechanism of melt-processed poly(lactic acid) (PLA)/multi-walled carbon nanotube (MWNT) composite films was investigated for the influence of MWNT loading, solubility parameters of solvents used, solvent transport behaviours, resultant electrical resistance changes, as well as crystallization of the PLA matrix. The diffusion, sorption and permeation coefficients of neat PLA and the composites were estimated, indicating that MWNT network structures block solvent molecules from penetrating into the polymer matrix. Solvent-induced crystallization of the polymer matrix was observed. Isothermally crystallized composites showed reduced resistances, a significant decrease of sorbed solvent content and a reduction of the resulting resistance changes on the solvent contact. In the context with sensing results on MWNT mats, it was proposed that the liquid sensing mechanism of PLA/MWNT composites consists of the overall electrical resistance changes caused by the str!
uctural variation of the conductive MWNT network in the polymer matrix and additional interactions between the MWNT and solvent molecules.
Reprint Address:
Poetschke, P, Leibniz Inst Polymer Res Dresden, Hohe Str 6, D-01069 Dresden, Germany.
Research Institution addresses:
[Kobashi, Kazufumi; Villmow, Tobias; Andres, Timo; Haeussler, Liane; Poetschke, Petra] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany
E-mail Address:
poe@ipfdd.de
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Cited Reference Count:
73
Times Cited:
0
Publisher:
IOP PUBLISHING LTD; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Subject Category:
Instruments & Instrumentation; Materials Science, Multidisciplinary
ISSN:
0964-1726
DOI:
10.1088/0964-1726/18/3/035008
IDS Number:
409GJ
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Title:
TEM Observation of the Giant Carbon Nanotube Construction Using Langmuir-Blodgett Films
Authors:
Imaizumi, Y; Kushida, M; Arakawa, Y; Fukuda, T
Author Full Names:
Imaizumi, Yoshiaki; Kushida, Masahito; Arakawa, Yoichiro; Fukuda, Toshio
Source:
IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 4 (1): 102-106 FEB 2009
Language:
English
Document Type:
Article
Author Keywords:
carbon nanotubes; chemical vapor deposition; Langmuir-Blodgett films; local growth
KeyWords Plus:
CHEMICAL-VAPOR-DEPOSITION; SINGLE-WALL; GROWTH
Abstract:
Langmuir-Blodgett (LB) films, which included Fe atoms as a catalytic metal material, were used for carbon nanotube (CNT) growth by chemical vapor deposition (CVD). A new form of localized nanotube growth was observed to result in a structure called a giant carbon nanotube construction (GNC). The GNC seems to be a self-assembled knitted structure formed by CNTs. The GNC is thin (similar to 5 mu m in diameter) and long (similar to 100 mu m) and is quite different from a CNT bundle. A growth mechanism for the GNC was developed from the results of TEM, SEM, and Raman spectral analysis. The GNC might find applications for CNT sensors, synthetic fibers. and so on. (c) 2009 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Reprint Address:
Kushida, M, Chiba Univ, Grad Sch Sci & Technol, Inage Ku, 1-33 Yoyoi Tyo, Chiba 2638522, Japan.
Research Institution addresses:
[Kushida, Masahito] Chiba Univ, Grad Sch Sci & Technol, Inage Ku, Chiba 2638522, Japan; [Imaizumi, Yoshiaki; Arakawa, Yoichiro; Fukuda, Toshio] Nagoya Univ, Grad Sch Micro Nano Syst Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
E-mail Address:
kushida@faculty.chiba-u.jp
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Cited Reference Count:
15
Times Cited:
0
Publisher:
JOHN WILEY & SONS INC; 111 RIVER ST, HOBOKEN, NJ 07030 USA
Subject Category:
Engineering, Electrical & Electronic
ISSN:
1931-4973
DOI:
10.1002/tee.20382
IDS Number:
408GJ
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