Lignin-based polyurethane doped with carbon nanotubes for sensor applications

被引：41

作者：

Faria, Fernando A. C. ^{[2
]}

Evtuguin, Dmitry V. ^{[1
,2
]}

Rudnitskaya, Alisa ^{[2
,3
]}

Gomes, Maria T. S. R. ^{[2
,3
]}

Oliveira, Joao A. B. P. ^{[2
,3
]}

Graca, M. Pedro F. ^{[4
,5
]}

Costa, Luis C. ^{[4
,5
]}

机构：

[1] Univ Aveiro, CICECO, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal

[3] Univ Aveiro, CESAM, P-3810193 Aveiro, Portugal

[4] Univ Aveiro, I3N, P-3810193 Aveiro, Portugal

[5] Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal

来源：

POLYMER INTERNATIONAL | 2012年 / 61卷 / 05期

关键词：

kraft lignin; polyurethane; carbon nanotubes; nanocomposites; chemical sensors;

D O I：

10.1002/pi.4140

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Modified eucalyptus kraft lignin doped with multiwall carbon nanotubes (MWCNTs) was used as a macromonomer in step-growth polymerization with tolylene 2,4-diisocyanate terminated poly(propylene glycol) with the aim of producing a conductive copolymer for all-solid-state potentiometric chemical sensor applications. The crosslinked elastomeric polyurethane obtained was characterized by Fourier transform infrared attenuated total reflection spectroscopy, scanning electron microscopy, tunnelling electron microscopy and atomic force microscopy. Doping of lignin-based polyurethane with MWCNTs produced a significant enhancement of its electrical conductivity without deterioration of thermal and viscoelastic properties. The polymer composite displayed a low percolation threshold at an MWCNT concentration of 0.18% (w/w), which was explained by the oriented distribution of MWCNTs along lignin clusters. All lignin-based polyurethanes doped with MWCNTs at concentrations above the percolation threshold are suitable for sensor applications. Copyright (c) 2012 Society of Chemical Industry

引用

页码：788 / 794

页数：7

共 42 条

[1] A review of potentially low-cost sorbents for heavy metals [J].

Bailey, SE ;

Olin, TJ ;

Bricka, RM ;

Adrian, DD .

WATER RESEARCH, 1999, 33 (11) :2469-2479

[2] Carrier-based ion-selective electrodes and bulk optodes. 1. General characteristics [J].

Bakker, E ;

Buhlmann, P ;

Pretsch, E .

CHEMICAL REVIEWS, 1997, 97 (08) :3083-3132

[3] Lignocellulosic materials as potential biosorbents of trace toxic metals from wastewater [J].

Basso, MC ;

Cerrella, EG ;

Cukierman, AL .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2002, 41 (15) :3580-3585

[4] Electric modulus-based analysis of the dielectric relaxation in carbon black loaded polymer composites [J].

Belattar, J. ;

Graca, M. P. F. ;

Costa, L. C. ;

Achour, M. E. ;

Brosseau, C. .

JOURNAL OF APPLIED PHYSICS, 2010, 107 (12)

[5]

Bellamy L.J., 1980, The Infrared Spectra of Complex Molecules, V2

[6] Synthesis and characterization of covalently immobilized bis-crown ether based potassium ionophore [J].

Bereczki, R ;

Gyurcsányi, RE ;

Agai, B ;

Tóth, K .

ANALYST, 2005, 130 (01) :63-70

[7] Exploiting the versatility of taste sensors based on impedance spectroscopy [J].

Borato, CE ;

Riul, A ;

Ferreira, M ;

Oliveira, ON ;

Mattoso, LHC .

INSTRUMENTATION SCIENCE & TECHNOLOGY, 2004, 32 (01) :21-30

[8] Removal of aqueous-phase polynuclear aromatic hydrocarbons using aspen wood fibers [J].

Boving, TB ;

Zhang, W .

CHEMOSPHERE, 2004, 54 (07) :831-839

[9] Improvement of gas sensing performance of carbon black/waterborne polyurethane composites: Effect of crosslinking treatment [J].

Chen, SG ;

Hu, JW ;

Zhang, MQ ;

Rong, MZ ;

Zheng, Q .

SENSORS AND ACTUATORS B-CHEMICAL, 2006, 113 (01) :361-369

[10] POLYURETHANE FROM KRAFT LIGNIN [J].

CHERADAME, H ;

DETOISIEN, M ;

GANDINI, A ;

PLA, F ;

ROUX, G .

BRITISH POLYMER JOURNAL, 1989, 21 (03) :269-275

← 1 2 3 4 5 →