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Yemul, Omprakash S.
- Tunable Photonic Bandgap Composites Based on Thermo- and pH-Responsive Poly-(N,N-Dimethylaminoethyl methacrylate) Hydrogels
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Authors
Affiliations
1 School of Materials Science and Engineering, Clemson University, Clemson, South Carolina, 29634-0971, US
1 School of Materials Science and Engineering, Clemson University, Clemson, South Carolina, 29634-0971, US
Source
Journal of Surface Science and Technology, Vol 21, No 3-4 (2005), Pagination: 183-194Abstract
A tunable polymeric photonic bandgap composite (TPBC) was created by encapsulating ordered, monodispersed polystyrene spheres within a hydrogel matrix based on poly(N,N-dimethylaminoethyl methacrylate). This polymer swells and contracts with changes in the temperature and pH of its surrounding solution. The volume phase transition property inherent to this poly(DMAEMA) hydrogel was used to reversibly shrink and swell the hydrogel, which causes a variation in the lattice constant and results in a mechanism to tune the stopband. A rejection band was reversibly tuned within the temperature range between 35 and 65° C and solution pH between 2 and 12. A 20 nm shift was observed for each 10° C change in temperature. The volume phase transitions of this poly(DMAEMA) hydrogel were characterized by differential scanning calorimetery (DSC), equilibrium swelling degree measurements and thermo-mechanical analysis (TMA).Keywords
Colloidal Crystalline Array, Polystyrene Spheres, Tunable Photonic Bandgap Composite, Poly(N,N-Dimethylaminoethyl Methacrylate), Temperature, pH.
- Preparation of Biodegradable Bioepoxy Resins from Waste Vegetable Oil for Sustainable Development
Abstract Views :287 |
PDF Views:4
Authors
Omprakash S. Yemul
1,
Rahul D. Kamble
1,
Viresh R. Thamke
2,
Snehalkumar D. Patil
1,
Bhaskar S. Dawane
1,
Kisan M. Kodam
2
Affiliations
1 School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded - 431606, Maharashtra, IN
2 Department of Chemistry, University of Pune, Pune - 411007, Maharashtra, IN
1 School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded - 431606, Maharashtra, IN
2 Department of Chemistry, University of Pune, Pune - 411007, Maharashtra, IN
Source
Journal of Surface Science and Technology, Vol 32, No 1-2 (2016), Pagination: 34-44Abstract
Novel biobased epoxy resins were prepared from waste vegetable oil by epoxidation using hydrogen peroxide in acetic acid. Biobased epoxy resins were prepared by reaction of acid hardeners such as citric acid (B1), tartaric acid (B2), succinic anhydride (B3) and sebacic acid (B4) with epoxydised waste vegetable oil. The intrinsic viscosities were in the range of 0.06 to 0.70 (dL/g) and thermally stable up to 350°C. Solution cast thin films are transparent except B4. The resin films were completely biodegraded by using bacterial granules (made up of bacterial consortia) within 14-135 days. The resin [B1] was found to be biocompatible based on blood clotting studies.Keywords
Biobased Hardeners, Biodegradable Epoxy Resins, Waste Vegetable Oil.References
- S. S. Adav, D. J. Lee and J. Y. Lai, Potential cause of aerobic granular sludge breakdown at high organic loading rates. Appl Microbiol. Biotechnol., 85, 1601 (2010).
- M. I. Aranguren, J. F. González and M. A. Mosiewicki, Biodegradation of a vegetable oil based polyurethane and wood flour composites. Polym. Test., 31, 7 (2012).
- M. N. Belgacem and A. Gandini, 'Polymers and Composites from Renewable Resources', Elsevier Publications (2008).
- G. Cheng, Z. Cai and L. Wang, Biodegredation of Poly (hydroxyutyrate)/poly(ethylene glycol) Blend Films. J. Mater. Sci-Mater. Med., 14, 1073 (2003).
- E. Chiellini, P. Cinelli, A. Corti and E. R. Kenawy, Composite films based on waste gelatin: thermal–mechanical properties and biodegradation testing. Polym. Degrad. Stab., 73, 549 (2001).
- E. Chiellini, P. Cinelli, A. Corti, E. R. Kenawy, G. E. Fernandes and R. Solaro, Environmentally sound blends and composites based on water‐soluble polymer matrices. Macromol. Symp., 152, 83 (2000).
- E. Chiellini, A. Corti and R. Solaro, Biodegradation of poly(vinyl alcohol) based blown films under different environmental conditions. Polym. Degrad. Stab., 64, 305 (1999).
- (a) R. Premraj and D. Mukesh, Biodegradation of polymers. Indian Journal of Biotechnology, 4, 186 (2005). (b) L. Katarzyna and L. Grażyna, Polymer Biodegradation and Biodegradable Polymers – a Review. Polish J. of Environ. Stud., 19(2), 255 (2010).
- N. S. Geweely and S. A. Ouf, Enhancement of fungal degradation of starch based plastic polymer by laser-induced plasma. Afr. J. Microbiol. Res., 5, 20, 3273 (2011).
- Y. C. Juang, S. S. Adav, D. J. Lee and J. Y. Lai, Influence of internal biofilm growth on residual permeability loss in aerobic granular membrane bioreactors. Environ. Sci. Technol., 44, 1267 (2010).
- Y. M. Kolekar, H. N. Nemade, V. L. Markad, S. S. Adav, M. S. Patole and K. M. Kodam, Decolorization and biodegradation of azo dye, reactive blue 59 by aerobic granules. Bioresour. Technol., 104, 818 (2012).
- F. S. Guner, Y. Yagc and A. T. Erciyes, Polymers from Triglyceride Oils. Prog. Polym. Sci., 31, 633 (2006).
- Y. Xia and C. L. Richard, Vegetable oil-based polymeric materials: synthesis, properties, and Applications, Green Chem., 12(11), 1893 (2010).
- S. S. Narine and X. Kong, Vegetable oils in production of polymers and plastics, In: S. Fereidoon (Ed.), Bailey’s Industrial Oil and Fat Products. John Wiley and Sons Inc., New York, pp. 1 (2005).
- N. Karak, Vegetable oil-based polymers: Properties, processing and applications, Woodhead Publishing Limited UK (2013).
- M. G. Kulkarni and A. K. Dalai, Waste cooking oil-an economical source for biodiesel: a review. Ind. Eng. Chem. Res., 45, 2901 (2006).
- R. T. Mathers, How well can renewable resources mimic commodity monomers and polymers? J. Polym. Sci. A Polym. Chem., 50, 1 (2012).
- M. A. R. Meier and J. O. Metzger, U. S. Schubert, Plant oil renewable resources as green alternatives in polymer science. Chem. Soc. Rev., 36, 1788 (2007).
- P. Patil, S. Deng, J. I. Rhodes and P. Lammers, Conversion of waste cooking oil to biodiesel using ferric sulfate and supercritical methanol processes. J. Fuel, 89, 360 (2010).
- Z. S. Petrovic, Polymers from biological oils. Contemporary Materials, I-1, 39 (2010).
- P. Rizzarelli, C. Puglisi and G. Montaudo Soil burial and enzymatic degradation in solution of aliphatic co-polyesters. Polym. Degrad. Stab., 85, 855 (2004).
- J. C. Ronda, G. Lligadas, M. Galia and V. Cadiz, Vegetable oils as platform chemicals for polymer synthesis. Eur. J. Lipid Sci. Technol., 113, 46 (2010).
- R. N. Saha, T. Kitano and P. Saha, Biodegradation of PVP–CMC hydrogel film: A useful food packaging material. Carbohyd. Polym., 89, 346 (2012).
- E. Rudnik, D. Briassoulis, Comparative biodegradation in soil behavior of two biodegradable polymers based on renewable resources. J. Polym. Environ., 19, 18 (2011).
- J. P. Pascault and J. J. Roberto, Epoxy polymers new materials and innovations, Williams Wiley-Vch Verlag GmbH & Co. KGaA, Weinheim. pp. 1 (2010).
- Y. Wang, J. Nie, M. Zhao, S. Ma, L. Kuang, X. Han and S. Tang, Production of Biodiesel from Waste Cooking Oil via a Two-Step Catalyzed Process and Molecular Distillation. Energ. Fuel, 24, 2104 (2010).
- Y. Wang, S. Y. Ou, P. Liu and Z. Zhang, Preparation of biodiesel from waste cooking oil via two-step catalyzed process Energ. Convers. Manage, 48, 184 (2007).
- Z. S. Petrović, A. Zlatanić, C. C. Lava and S. S. Fiser, Eur. J. Lipid Sci. Technol., 104, 293 (2002)
- M. Stemmelen, F. Pessel, V. Lapinte, S. Caillol, J. P. Habas and J. Robin, A fully biobased epoxy resin from vegetable oils: from the synthesis of the precursors by thiolene reaction to the study of the final material. J. Polym. Sci., 49, 2434 (2011).
- J. R. Kim and S. Sharma, The development and comparison of bio-thermoset plastics from epoxidized plant oils. Ind. Crop. Prod., 36, 485 (2012).
- R. Auvergne, S. Caillol, G. David, B. Boutevin and J. P. Pascault, Biobased thermosetting epoxy: present and future. Chem. Rev. 114, 1082 (2014).
- (a) O. S. Yemul, B. S. Dawane, I. G. Shaikh, V. T. Thamke and K. M. Kodam, Biodegradable Bioepoxy Resin from Mahua oil. SRTMU’s Res. J. Sci., 2(1), 13 (2013). (b) O. S. Yemul, B. S. Dawane, M. S. Pawar, A. S. Kadam, K. M. Kodam and V. R. Thamke, A Process for preparation of biodegradable polymers from algae oil Indian Patent Application no.: 2296/MUM/2012
- C. D. Doyle, Estimating thermal stability of experimental polymers by empirical thermogravimetric analysis. Anal. Chem., 33, 77 (1961).
- L. Shen, E. Worrell and M. Patel, Present and future development in plastics from biomass Biofuels Bioprod. Bioref., 4, 25 (2010).
- R. Smith, Biodegradable polymers for industrial applications; Woodhead and Cambridge, UK (2005).
- M. J-L. Tschan, E. Brule, P. Haquette and C. M. Thomas, Synthesis of biodegradable polymers from renewable resources. Polym. Chem. 3, 836 (2012).
- L. Yu, Biodegradable polymer blends and composites from renewable resources, John Wiley & Sons, New Jersey (2009).
- X. Zhang, Y. Gozukara, P. Sangwan, D. Gao and S. http://ischolarglobal.com/index.php/JSSTISSST/editor/viewMetadata/107850#Bateman, Biodegradation of chemically modified wheat gluten-based natural polymer materials. Polym. Degrad. Stab., 95, 2309 (2010).
- E. Chiellini, A. Corti, S. D’Antone and R. Solaro, Biodegradation of poly (vinyl alcohol) based materials. Prog. Polym. Sci., 28, 963 (2003).
- E. Rudnik and D. Briassoulis, Degradation behaviour of poly(lactic acid) films and fibres in soil under Mediterranean field conditions and laboratory simulations testing. Industrial Crops and Products, 33(3), 648, May 2011.