2014
DOI: 10.1016/j.ijbiomac.2014.01.073
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Synthesis and molecular characterization of chitosan based polyurethane elastomers using aromatic diisocyanate

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Cited by 110 publications
(44 citation statements)
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“…The following bands were observed in the NS structures: NH/OH stretching vibrations at 3275 cm −1 , asymmetrical CH stretching vibrations at 2925 cm −1 , CO stretching vibrations at 1648 cm −1 , NHCO stretching vibrations at 1530 cm −1 , CH 2 bending vibrations at 1446 cm −1 (aromatic group of TDI), CN stretching vibrations at 1220 cm −1 , and COC stretching vibrations at 1152 cm −1 . The isocyanate peak was not observed in the FTIR spectra of the NSs.…”
Section: Resultsmentioning
confidence: 91%
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“…The following bands were observed in the NS structures: NH/OH stretching vibrations at 3275 cm −1 , asymmetrical CH stretching vibrations at 2925 cm −1 , CO stretching vibrations at 1648 cm −1 , NHCO stretching vibrations at 1530 cm −1 , CH 2 bending vibrations at 1446 cm −1 (aromatic group of TDI), CN stretching vibrations at 1220 cm −1 , and COC stretching vibrations at 1152 cm −1 . The isocyanate peak was not observed in the FTIR spectra of the NSs.…”
Section: Resultsmentioning
confidence: 91%
“…The isocyanate peak was not observed in the FTIR spectra of the NSs. This indicates that (different from NSs produced using HMDI under the same conditions) all of the NCO groups reacted with the OH groups, the condensation reaction completed, and the polyurethane polymer was formed . A decrease in all of the peak intensities was observed due to the adsorption of p ‐NP parallel to the NS surface.…”
Section: Resultsmentioning
confidence: 92%
“…They can be incorporated into different items such as paints, liquid coatings, elastomers, insulators, elastic fibres, foams and integral skins [6]. Currently polyurethanes are one of the most common, versatile and researched materials in the world [7]. These materials combine the durability and toughness of metals with the elasticity of rubber, making them to suitably replace metal, plastics and rubber in several engineered products [8].…”
Section: Introductionmentioning
confidence: 99%
“…Most polysaccharides are obtained from plants, animals, and microorganisms (Qu, Liu, & Zhang, 2014;Vu, Chen, Crawford, & Ivanova, 2009;Zia, Anjum, Zuber, Mujahid, & Jamil, 2014). However, the preparation methods often involve lots of prophase work, such as material choice, extraction, isolation, purification to obtain target products while polysaccharides yield rates are low.…”
Section: Introductionmentioning
confidence: 99%