Geopolymers
Inorganic polymeric new materials
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K. Chrissafis
K. Chrissafis
Solid State Physics Department, School of Physics, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Macedonia, Greece
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E. Pavlidou
E. Pavlidou
Solid State Physics Department, School of Physics, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Macedonia, Greece
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K. M. Paraskevopoulos
K. M. Paraskevopoulos
Solid State Physics Department, School of Physics, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Macedonia, Greece
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T. Beslikas
T. Beslikas
2nd Orthopedic Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
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N. Nianias
N. Nianias
Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Macedonia, Greece
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D. Bikiaris
D. Bikiaris
Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Macedonia, Greece
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Abstract
Nanocomposites of poly(l-lactic acid) (PLLA) containing 2.5 wt% of fumed silica nanoparticles (SiO2) and organically modified montmorillonite (OMMT) were prepared by solved evaporation method. From SEM micrographs it was observed that both nanoparticles were well dispersed into PLLA matrix. All nanocomposites exhibited higher mechanical properties compared to neat PLLA, except elongation at break, indicating that nanoparticles can act as efficient reinforcing agents. Nanoparticles affect, also, the thermal properties of PLLA and especially the crystallization rate, which in all nanocomposites is faster than that of neat PLLA. From the thermogravimetric curves it can be seen that neat PLLA nanocomposites present a relatively better thermostability than PLLA, and this was also verified from the calculation of activation energy (E). From the variation of E with increasing degree of conversion it was found that PLLA/nanocomposites decomposition takes place with a complex reaction mechanism, with the participation of two different mechanisms. The combination of models, nth order and nth order with autocatalysis (Fn–Cn), for PLLA and PLLA/OMMT as well as the combination of Fn–Fn for PLLA/SiO2 give the better results. For the PLLA/OMMT the values of the E for both mechanisms are higher than neat PLLA. For the PLLA/SiO2 nanocomposite the value of the E is higher than the corresponding value for PLLA, for the first area of mass loss, while the E of the second mechanism has a lower value.
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-
1. Hayashi, T. Biodegradable polymers for biomedical uses. Prog Polym Sci. 1994;19:663–702 .
-
2. Rezwan, K, Chen, QZ, Blaker, JJ, Boccaccini, AR. Biodegradable, bioactive porous polymer/inorganic composite scaffolds for bone tissue engineering. Biomaterials 2006 27:3413–3437 .
-
3. Balasundaram, G, Webster, TJ. An overview of nano-polymers for orthopedic applications. Macromol Biosci 2007 7:635–642 .
-
4. Boccaccini, AR, Gerhardt, LS, Rebeling, S, Blaker, JJ. Fabrication, characterization and assessment of bioactivity of poly(d/l-lactic acid) (PDLLA)/TiO2 nanocomposite films. Compos A 2005 36:721–7 .
-
5. Abarrategi, A, Gutierrez, M, Moreno-Viccente, C, Hortiguala, MJ, Ramos, V, Lopez-Lacomba, JL, Ferrer, M, Del Monte, F. Multiwall carbon nanotube scaffold for tissue engineering purposes. Biomaterials 2008 29:94–102 .
-
6. Kotela, I, Podporska, J, Soltysiak, E, Konsztowicz, KJ, Blazewicz, M. Polymer nanocomposites for bone tissue substitutes. Ceram Int 2009 35:2475–2480 .
-
7. Agrawal, M, Ray, RB. Biodegradable polymeric scaffolds for musculoskeletal tissue engineering. J Biomed Mater Res 2001 55:141–150 .
-
8. Wei, G, Ma, PX. Structure and properties of nano-hydroxyapatite/polymer composite scaffolds for bone tissue engineering. Biomaterials 2004 25:4749–4757 .
-
9. Satyanarayana, D, Chatterji, PR. Biodegradable polymers: challenges and strategies. J Macromol Sci Rev Macromol Chem Phys 1993 C33:39–368.
-
10. Cheung, HY, Lau, KT, Lu, TP, Hui, D. A critical review on polymer-based bio-engineered materials for scaffold development. Compos B Eng 2007 38:291–300 .
-
11. Bleach, NC, Nazhat, SN, Tanner, KE, Kellomäki, M, Törmälä, P. Effect of filler content on mechanical and dynamic mechanical properties of particulate biphasic calcium phosphate—polylactide composites. Biomaterials 2002 23:1579–1585 .
-
12. Alexander, H, Langrana, N, Massengill, J, Weiss, A. Development of new methods for phalangeal fracture fixation. J Biomech 1981 14:377–387 .
-
13. Vassiliou, A, Papageorgiou, GZ, Achilias, DS, Bikiaris, DN. Non-isothermal crystallization kinetics of in situ prepared poly(∊-caprolactone)/surface-treated SiO2 nanocomposites. Macromol Chem Phys 2007 21:364–376 .
-
14. Vassiliou, A, Chrissafis, K, Bikiaris, DN. In situ prepared PBSu/SiO2 nanocomposites. Study of thermal degradation mechanism. Thermochim Acta 2009 495:120–128 .
-
15. Yan, S, Yin, J, Yang, Y, Dai, Z, Ma, J, Chen, X. Surface-grafted silica linked with l-lactic acid oligomer: a novel nanofiller to improve the performance of biodegradable poly(l-lactide). Polymer 2007 48:1688–1694 .
-
16. Wu, CS, Liao, HT. Modification of biodegradable polylactide by silica and wood flour through a sol-gel process. J Appl Polym Sci 2008 109:2128–2138 .
-
17. Wu, L, Cao, D, Huang, Y, Li, B. Poly(l-lactic acid)/SiO2 nanocomposites via in situ melt polycondensation of l-lactic acid in the presence of acidic silica sol: preparation and characterization. Polymer 2008 49:742–749 .
-
18. Zhou, Q, Xanthos, M. Nanosize and microsize clay effects on the kinetics of the thermal degradation of polylactides. Polym Degrad Stab 2009 94:327–328 .
-
19. Jiang, L, Zhang, J, Wolcott, MP. Comparison of polylactide/nano-sized calcium carbonate and polylactide/montmorillonite composites: reinforcing effects and toughening mechanisms. Polymer 2007 48:7632–7644 .
-
20. Wen, X, Lin, Y, Han, C, Zhang, K, Ran, X, Li, Y, Dong, L. Thermomechanical and optical properties of biodegradable poly(l-lactide)/silica nanocomposites by melt compounding. J Appl Polym Sci 2009 114:3379–3386 .
-
21. Chang, JH, An, YA, Sur, GS. Poly(lactic acid) nanocomposites with various organoclays. I. Thermomechanical properties, morphology, and gas permeability. J Polym Sci B Polym Phys 2003 41:94–103 .
-
22. Migliaresi, CD, Cohn, D A De Lollis Fambri, L. Dynamic mechanical and calorimetric analysis of compression-molded PLLA of different molecular weights. Effect of thermal treatments. J Appl Polym Sci. 1991;43:83–95 .
-
23. Gopakumar, TG, Lee, JA, Kontopoulou, M, Parent, JS. Influence of clay exfoliation on the physical properties of montmorillonite/polyethylene composites. Polymer 2002 43:5483–5491 .
-
24. Antoniadis, G, Paraskevopoulos, KM, Bikiaris, D, Chrissafis, K. Kinetics study of cold-crystallization of poly(ethylene terephthalate) nanocomposites with multi-walled carbon nanotubes. Thermochim Acta 2009 493:68–75 .
-
25. Di, YW, Iannace, S, Di, ME, Nicolais, L. Poly(lactic acid)/organoclay nanocomposites: thermal, rheological properties and foam processing. J Polym Sci B Polym Phys 2005 43:689–698 .
-
26. Chrissafis, K, Paraskevopoulos, KM, Papageorgiou, GZ, Bikiaris, DN. Thermal and dynamic mechanical behavior of bionanocomposites: fumed silica nanoparticles dispersed in poly(vinyl pyrrolidone), chitosan, and poly(vinyl alcohol). J Appl Polym Sci 2008 110:1739–1749 .
-
27. Chen, K, Wilkie, CA, Vyazovkin, S. Nanoconfinement revealed in degradation and relaxation studies of two structurally different polystyrene-clay systems. J Phys Chem B 2007 111:12685–12692 .
-
28. Yoon, JT, Jeong, YG, Lee, SC, Min, BG. Influences of poly(lactic acid)-grafted carbon nanotube on thermal, mechanical, and electrical properties of poly(lactic acid). Polym Adv Technol 2009 20:631–638 .
-
29. Krishnamachari, P, Zhang, J, Lou, J, Yan, J, Uitenham, L. Biodegradable poly(lactic Acid)/clay nanocomposites by melt intercalation: a study of morphological, thermal, and mechanical properties. Int J Polym Anal Charact 2009 14:336–350 .
-
30. Chow, WS, Lok, SK. Thermal properties of poly(lactic acid)/organo-montmorillonite nanocomposites. J Therm Anal Calorim 2009 95:627–632 .
-
31. Zhang, J, Lou, J, Ilias, S, Krishnamachari, P, Yan, J. Thermal properties of poly(lactic acid) fumed silica nanocomposites: experiments and molecular dynamics simulations. Polymer 2008 49:2381–2386 .
-
32. McLauchlin, AR, Thomas, NL. Preparation and thermal characterization of poly(lactic acid) nanocomposites prepared from organoclays based on an amphoteric surfactant. Polym Degrad Stab 2009 94:868–872 .
-
33. Chang, JH, An, YU, Cho, D, Giannelis, EP. Poly(lactic acid) nanocomposites: comparison of their properties with montmorillonite and synthetic mica. Polymer 2003 44:3715–3720 .
-
34. Vyazovkin, S. Model-free kinetics. Staying free of multiplying entities without necessity. J Therm Anal Calorim. 2007;83:45–51 .
-
35. Starink, MJ. On the applicability of isoconversion methods for obtaining the activation energy of reactions within a temperature-dependent equilibrium state. J Mater Sci. 1997;32:6505–6512 .
-
36. Ozawa, T. A new method of analyzing thermogravimetric data. Bull Chem Soc Jpn. 1965;38:1881–1886 .
-
37. Flynn, JH, Wall, LA. General treatment of the thermogravimetry of polymers. J Res Natl Bur Stand Phys Chem 1966 70A:487–523.
-
38. Flynn, JH, Wall, LA. A quick, direct method for the determination of activation energy from thermogravimetric data. Polym Lett 1966 4:323–328 .
-
39. Friedman, HL. Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic. J Polym Sci C. 1964;6:183–195.
-
40. Vyazovkin, S. Modification of the integral isoconversional method to account for variation in the activation energy. J Comput Chem. 2001;22:178–183 .
-
41. Kissinger, HE. Reaction kinetics in differential thermal analysis. Anal Chem. 1957;29:1702–1708 .
-
42. Zou, H, Yi, C, Wang, L, Liu, H, Xu, W. Thermal degradation of poly(lactic acid) measured by thermogravimetry coupled to Fourier transform infrared spectroscopy. J Therm Anal Calorim 2009 97:929–935 .
-
43. Opfermann, J. Kinetic analysis using multivariate non-linear regression i. Basic concepts. J Therm Anal Calorim. 2000;60:641–658 .
-
44. Chrissafis, K, Paraskevopoulos, KM, Jannakoudakis, A, Beslikas, T, Bikiaris, D. Oxidized multi-walled carbon nanotubes as effective reinforcement and thermal stability agents of PLLA ligaments. J Appl Polym Sci 2010 118:2712–2721 .
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| Journal of Thermal Analysis and Calorimetry | |
|---|---|
| Language | English |
| Size | A4 |
| Year of Foundation |
1969 |
| Volumes per Year |
1 |
| Issues per Year |
24 |
| Founder | Akadémiai Kiadó |
| Founder's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. |
| Publisher | Akadémiai Kiadó Springer Nature Switzerland AG |
| Publisher's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11. |
| Responsible Publisher |
Chief Executive Officer, Akadémiai Kiadó |
| ISSN | 1388-6150 (Print) |
| ISSN | 1588-2926 (Online) |
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Temperature dependence of the rate of reaction in thermal analysis
The Arrhenius equation in condensed phase kinetics
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