Functionalization of multiwalled carbon nanotubes for reinforcing of poly(l-lactide-co-ɛ-caprolactone) biodegradable copolymers

Chakoli, Ali Nabipour; Wan, Jing; Feng, Jiang; Amirian, Maryam; Sui, Jie; Cai, Wei

doi:10.1016/j.apsusc.2009.07.103

Cited by 48 publications

(30 citation statements)

References 32 publications

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“…There is an abundant number of papers reporting the use of unusual mechanical properties of carbon nanotubes (CNT) for a reinforcement of organic polymeric materials. After doping, specific electric, magnetic and optical properties of CNT spread on the composites [2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Metal salts of carboxylic multiwalled carbon nanotubes – preparation, structure and thermal properties

Michalski

Kwiecień

Khachatryan

et al. 2011

Phys. Status Solidi C

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Salts of carboxylated multiwalled carbon nanotubes with monovalent Ag(I), Li, Na, NH4, divalent Ba, Co(II), Cu(II), Pd(II), UO2, Zn, trivalent Ce(III), Cr(III), In(III), Ru(III), Sm(III), tetravalent Pt(IV), Th(IV) and pentavalent Nb(V) cations were prepared and elucidation of their structure was attempted based on their thermal and the QMS analyses. The salts usually decomposed specifically up to 400 °C. Above that temperature decomposition of the nanotubes matter can proceed with either oxidizing or catalyzing participation of the metal derivatives formed on the thermolysis of the metal salts. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Section: Introductionmentioning

confidence: 99%

Metal salts of carboxylic multiwalled carbon nanotubes – preparation, structure and thermal properties

Michalski

Kwiecień

Khachatryan

et al. 2011

Phys. Status Solidi C

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“…[33] In the spectrum of CNTs-COOH, there was an evident peak at 1720 cm À1 , assigned to absorption peak of C=O. [34] This indicated that acid-treated CNTs contained carboxyl groups. For CNTs-COCl, a peak at 1784 cm À1 was observed, which is attributed to C=O of acid chloride functionalized CNT (O=C-Cl).…”

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confidence: 98%

Synthesis, stereocomplex crystallization and properties of poly(l‐lactide)/four‐armed star poly(d‐lactide) functionalized carbon nanotubes nanocomposites

Jing

Shi

Zhang

et al. 2015

Polymers for Advanced Techs

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Functionalized carbon nanotubes (F-CNTs) were synthesized through the nucleophilic substitution reaction between four-armed star poly(D-lactide) (4PDLA) and acryl chloride of carbon nanotubes and were characterized using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and thermogravimetric analysis. The results indicated that the 4PDLA was successfully grafted onto carbon nanotubes, and it contained 45.5 wt% of 4PDLA. Poly(L-lactide) (PLLA) nanocomposites with different F-CNTs content were prepared by solution casting. Optical microscopy and scanning electron microscopy results showed that F-CNTs were uniformly dispersed in the nanocomposites. Crystallization behavior and crystal structure of PLLA nanocomposites were investigated using differential scanning calorimetry, polarizing microscope and X-ray diffraction. The results found that poly(lactide) stereocomplex crystal could be formed between PLLA and F-CNTs. F-CNTs played different roles in the process of solution casting and melting crystallization. Polarizing microscope also revealed that crystallization temperature had a significant effect on the nucleation and spherulites growth of PLLA. Thermal stability and mechanical properties of the nanocomposites were also investigated by thermogravimetric analysis, dynamic mechanical analysis and tensile testing. These results demonstrated that the addition of F-CNTs obviously improved thermal stability and tensile strength of PLLA. The results showed that PLLA/F-CNTs would have potential values in engineering fields.

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“…25 The peaks at 2915 and 2835 cm -1 were assigned to the stretching vibration of the C-H bond of the alkyl group. 26 The peaks at 1632 and 1384 cm -1 were due to the stretching vibrations of C=C and C-C bonds, respectively. The peak at 1113 cm -1 represented the stretching vibration of the C-O bond.…”

Section: Ftir Spectral Characterizationmentioning

confidence: 99%

Multi-walled Carbon Nanotubes/Graphite Nanosheets Modified Glassy Carbon Electrode for the Simultaneous Determination of Acetaminophen and Dopamine

Zhang

et al. 2015

ANAL. SCI.

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Graphite nanosheets prepared by thermal expansion and successive sonication were utilized for the construction of a multi-walled carbon nanotubes/graphite nanosheets based amperometric sensing platform to simultaneously determine acetaminophen and dopamine in the presence of ascorbic acid in physiological conditions. The synergistic effect of multiwalled carbon nanotubes and graphite nanosheets catalyzed the electrooxidation of acetaminophen and dopamine, leading to a remarkable potential difference up to 200 mV. The as-prepared modified electrode exhibited linear responses to acetaminophen and dopamine in the concentration ranges of 2.0 × 10 -6 -2.4 × 10 -4 M (R = 0.999) and 2.0 × 10 -6 -2.0 × 10 -4 M (R = 0.998), respectively. The detection limits were down to 2.3 × 10 -7 M for acetaminophen and 3.5 × 10 -7 M for dopamine (S/N = 3). Based on the simple preparation and prominent electrochemical properties, the obtained multiwalled carbon nanotubes/graphite nanosheets modified electrode would be a good candidate for the determination of acetaminophen and dopamine without the interference of ascorbic acid.

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Functionalization of multiwalled carbon nanotubes for reinforcing of poly(l-lactide-co-ɛ-caprolactone) biodegradable copolymers

Cited by 48 publications

References 32 publications

Metal salts of carboxylic multiwalled carbon nanotubes – preparation, structure and thermal properties

Metal salts of carboxylic multiwalled carbon nanotubes – preparation, structure and thermal properties

Synthesis, stereocomplex crystallization and properties of poly(l‐lactide)/four‐armed star poly(d‐lactide) functionalized carbon nanotubes nanocomposites

Multi-walled Carbon Nanotubes/Graphite Nanosheets Modified Glassy Carbon Electrode for the Simultaneous Determination of Acetaminophen and Dopamine

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