Fabrication of Functional Waterborne
Combinatorial Chemistry & High Throughput Screening, 2012, Vol. 15, No. 7 527
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concentration of the polymer, degree of neutralization and chain
extension on aqueous polyurethane dispersions prepared by the
acetone process. Polymer, 2006, 47, 1805-1811.
WPU
1% WPU
0.30
0.25
0.20
0.15
0.10
0.05
0.00
2% WPU
244
3% WPU
4% WPU
5% WPU
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Lee, S.K.; Yoon, S.H.; Chung, I.I.; Hartwig, A.; Kim, B.K.
Waterborne polyurethane nano- composites having shape memory
effects. J. Polym. Sci. A: Polym. Chem., 2011, 49, 634-641.
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0
20
40
60
80
100
120
t(s)
[12]
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Akat, H.; Tasdelen, M.A. Synthesis and characterization of
polymer/clay composites by intercalated chain transfer agent. Euro.
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retardant behavior of carbon nanotube membranes and carbon
nanofiber paper in carbon fiber reinforced epoxy composites.
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Lee, H.T.; Lin, L.H. Waterborne polyurethane/clay composites:
Novel effects of the clay and its interlayer ions on the morphology
and physical and electrical properties. Macromolecules, 2006, 39,
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Kolb, H.C.; Finn, M.G.; Sharpless, K.B. Click chemistry: Diverse
chemical function from a few good reactions. Angew. Chem. Int.
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beneficial union for the preparation of functional materials. QSAR
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Reilly, R.K.O.; Joralemon, M.J.; Wooley, K.L.; Hawker, C.J.
Functionalization of micelles and shell cross-linked nanoparticles
using click chemistry. Chem. Mater., 2005, 17, 5976-5988.
Kato, T.; Miyagawa, A.; Kasuya, M.C.Z.; Hatanaka, K.
Development of membrane filter with oligosaccharide immobilized
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Fig. (10). MLR plots of pristine WPU and WPU/MMT composites.
and WPU were confirmed by FT-IR spectra, elemental
analysis and XRD. The structure of the composites was
investigated by SEM. Elementary analysis results show that
azide-Modified MMT has been grafted onto WPU
successfully, and the grafting density of azide group on
WPU surface is 220.1 umolg-1. Moreover, this method has
resolved the agglomeration phenomenon of MMT in coating
compared with conventional methods. Water resistance and
mechanical property of the WPU/MMT composites were
enhanced obviously as the increase of clay owing to the
formation of compact intercalated structure. Although
different composites show different behaviors and lack an
explicit trend, the reinforcing effect of MMT on the
properties of the WPU/MMT composites, such as the heat,
flame and water resistance is evident under the concentration
of MMT below 4%.
[14]
[15]
[16]
[17]
[18]
[19]
[20]
Kocalka, P.; El-Sagheer, A.H.; Brown, T. Rapid and efficient DNA
strand cross-linking by click chemistry. Chem. Bio. Chem., 2008, 9,
1280-1285.
Tornoe, C.W.; Christensen, C.; Meldal, M. Peptidotriazoles on
solid phase: [1,2, 3]-triazoles by regiospecific copper(I)-catalyzed
1,3-dipolar cycloadditions of terminal alkynes to azides. J. Org.
Chem., 2002, 67, 3057-3064.
Malkoch, M.; Thibault, R.J.; Drockenmuller, E., Messerschmidt,
M.; Voit, B.; Russell, T. P.; Hawker, C. J. Orthogonal approaches
to the simultaneous and cascade functionalization of
macromolecules using click chemistry. J. Am. Chem. Soc., 2005,
127, 1942-1949.
ACKNOWLEDGEMENTS
We acknowledge the financial support from the National
Natural Science Foundation of China (No. 51172116) and
Natural Science Foundation of Shandong Province, China
(Grant No. ZR2010BL022).
[21]
CONFLICT OF INTEREST
Declared none.
[22]
[23]
[24]
[25]
Mamat, C.; Ramenda, T.; Wuest, F. R. Recent applications of click
chemistry for the synthesis of radiotracers for molecular imaging.
Mini-Rev. Org. Chem., 2009, 6, 21-34.
Xie, J.; Seto, C.T. A two stage click-based library of protein
tyrosine phosphatase inhibitors. Bioorg. Med. Chem., 2007, 15,
458-473.
Evansa, R.A. The rise of Azide–Alkyne 1,3-dipolar ‘Click’
cycloaddition and its application to polymer science and surface
modification. Aust. J. Chem., 2007, 60, 384-395.
Majumdar, K.C.; Mondal, S. A Short route to [1,2,3]-triazolyl
coumarin and quinolone derivatives by Cu(I) catalyzed 1,3-dipolar
cycloaddition and fluorescence studies. Lett. Org. Chem., 2009, 6,
82-87.
Salisburya, C.M.; Cravatt, B.F. Click chemistry-led advances in
high content functional proteomics. QSAR Comb. Sci., 2007,
26(11-12), 1229-1238.
Peng, J.Y.; Yu, P.R.; Zeng, S.J. Application of click chemistry in
the fabrication of cactus-like hierarchical particulates for sticky
super hydrophobic surfaces. J. Phys. Chem. C, 2010, 114, 5926-
5931.
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