Thermal degradation and hemocompatibility of polyurethane cellulose nanocomposites
Keywords:
polyurethane, cellulose, nanocomposites, hemolytic assayAbstract
Bio based polymers are reinforced with natural fibers as a good candidate to the replacement of synthetic materials. In this work biobased polyurethane cellulose nanocomposites (PUCNs) prepared from hydroxylated olive oil and diphenyl methane - 4, 4 - diisocyanate,in the presence of dibutyl tin dilaurate as catalyst and incorporated with varying concentration of cellulose nanocrystals. The polyurethane cellulose nanocomposites films have been characterized by FTIR, XRD, SEM and TGA/DTA studies. The compatibility of the nanocomposites is evaluated by invitro hemolytic assay method. The FTIR analysis indicates the presence of the cellulose nanocrystals in the polyurethane matrix. The formation of urethane linkage is confirmed by the stretching vibrations of the peak around 3330 cm-1. XRD diffraction pattern of the samples shows a increase of 2% crystallinity by the addition of cellulose nanoparticles. The average size of cellulose nanocrystals is calculated as 16nm. SEM images shows a rod like structure of cellulose nanocrystals and the fine dispersion of cellulose nanocrystals in the polymer matrix. The degradation of PUCNs is more pronounced in different chemical environments than polyurethane. Thermogravimetric analysis observed that the addition of cellulose nanocrystals increases the thermal stability of PUCNs upto 300oC.
Downloads
References
D.A.Nguyen, Y.R.Lee,A.V.Raghu,H.M.Jeong, C.M.Shin and B.K.Kim,Polym.Int.,58,412 (2009).
S.Gopalakrishnan, N.T.Nevaditha and C.V.Mythili. Synthesis and characterization of bifunctional monomers for high performance polymers from renewable resource. International Journal of chemical technology Research, 4 (1): 48 – 54 (2012).
H.Deka, N.Karak.Vegetable oil based hyperbranched thermosetting polyurethane/clay nanocomposites.Nanoscale Res. Lett.2009,4,758-765.
T .Gurunathan, J.S.Chung.physicochemical properties of amino silane terminated vegetable oil based waterborne polyurethane nanocomposites.ACS Sustain.Chem.Eng.2016,4,4645-4653.
M.C.C.Ferrer,D.Babb,A.J.Ryan.Characterisation of polyurethane networks based on vegetable derived polyol. Polymer 2008,49,3279-3287.
D.Ji,Z.Fang,W.He,K.Zhang,Z.Luo,T.Wang and K.Guo. Synthesis of soypolyols using a continuous microflow system and preparation of soy based polyurethane rigid foams.ACS.Sustain.Chem.Eng.2015,3,1197-1204.
Y.Pan,J.Zhan,H.Pan,W.Wang,G.Tang,L.Song andY.Hu. Effect of fully biobased coatings constructed via layer by assembly of chitosan and lignosulfonate on the thermal,flame retardant and mechanical properties of flexible polyurethane foam.ACS.Sustain.Chem.Eng 2016,4,1431-1438.
H.Bakhshi,H.Yeganeh,A.Yari and S.K.Nezhad.Castor oil based polyurethane coatings containing benzyl triethanol ammonium chloride: Synthesis, characterization and biological properties.J.Mater.Sci.2014,49,5365-5377.
A.Ali,K.Yusoh and S. Hasany , Synthesis and physicochemical behaviour of polyurethane multiwalled carbon nanotubes nanocomposites based on renewable castor oil polyols. J.Nanomater.2014,564384.
S.Abdalla, N.AlAama and M.A.AlGhamdi. A bio polymeric adhesive produced by photo cross linkable technique. polymers 2016,8,292.
B.Imre,B.Pukanzky,Eur.Polym.J.2013,49,1215
J.Lamaming, R.Hasim, C.P.Leh, O.Sulaman, T.Sugimoto,M.Nasir, Isolation and characterization of cellulose nanocrystals from parenchyma and vascular bundle of oil palm trunk (Elaeisguineensis). Carbohydrate polym 2015:134:534-40.
P.Lu, Y.L.Hsieh, Preparation and characterization of cellulose nanocrystals from rice straw. Carbohydrate polym 2012:87, 564-73.
N.Lin and A.Dufresne. Nanocellulose in biomedicine current status and future prospect. Eurpolym J 2014:59:302-25.
J.Araki, M.Wada, S.Kuga and T.Okano. Flow properties of microcrystalline cellulose suspension prepared by acid treatment of native cellulose. Colloids .Surf.A 1998:142:75-82.
Mohammed Nasir, RokiahHasim, Othman Sulaiman and MohdAsim. Nanocellulose: Preparation methods and applications.cellulose reinforced nanofibre composites, 2017, 261-276.
M.Loelovich.Cellulose as a nanostructured polymer a short review. Bioresources 2008:3:1403-18.
P.Baurschmidt, M.Schaldach,Alloplastic materials for heart valve prostheses, Med.Biol.Eng.Computer.18,1980,496-502.
Puskas, J.E. & Chen, Y. (2004). Biomedical application of commercial polymers and novel polyisobutylene-based thermoplastic elastomers for soft tissue replacement. Biomacromolecules,Vol .5, No. 4, (July–August 2004), pp. 1141–1154, ISSN 1525-7797.
Published
How to Cite
Issue
Section
Copyright (c) 2022 International journal of health sciences
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Articles published in the International Journal of Health Sciences (IJHS) are available under Creative Commons Attribution Non-Commercial No Derivatives Licence (CC BY-NC-ND 4.0). Authors retain copyright in their work and grant IJHS right of first publication under CC BY-NC-ND 4.0. Users have the right to read, download, copy, distribute, print, search, or link to the full texts of articles in this journal, and to use them for any other lawful purpose.
Articles published in IJHS can be copied, communicated and shared in their published form for non-commercial purposes provided full attribution is given to the author and the journal. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
This copyright notice applies to articles published in IJHS volumes 4 onwards. Please read about the copyright notices for previous volumes under Journal History.