Effect of nano-SiO2 on the compatibility of PVA/RSF blend

Published Date

August 2012, Volume 21, Issue 8, pp 523-530

First online: 14 June 2012

Title 

Effect of nano-SiO2 on the compatibility of PVA/RSF blend

• Author 

• Yanhua Liu
• , Mei Huang
• , Dongdan Cai
• , Jun Sun
• , Chuanxiang Qin
• , Lixing Dai 
• , Jianjun Wang

Abstract

A series of poly(vinyl alcohol) (PVA)/regenerated silk fibroin (RSF)/nano-silicon dioxide (nano-SiO2) blend films were prepared by solution casting method, in which nano-SiO2was obtained via sol–gel process. The structure, properties, and morphology of the films related to the compatibility were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). XRD peaks of PVA/RSF/nano-SiO2 (1.0 wt %) blends decreased in intensity indicated that formation of PVA and RSF crystal lattices was hindered by nano-SiO2 particles. FTIR spectroscopy analysis of PVA/RSF/nano-SiO2 films confirmed that both Si–O–C linkage and hydrogen bonding were formed among PVA, RSF, and nano-SiO2. SEM showed that there was no obvious phase separation in PVA/RSF/nano-SiO2 (1.0 wt %) film although small uniform blur particles can still be found. In addition, TEM showed nano-particles were well dispersed through the PVA/RSF polymer matrix. Besides, the observed shift in glass transition temperatures (T g) and improvement in thermal properties of composite films suggested the enhanced compatibility due to interfacial bonding and intermolecular interactions. Therefore, these results indicated that the compatibility of PVA/RSF was improved effectively by the addition of nano-SiO2.

References

1. 1.
   Kim UJ, Park J, Li C, Jin HJ, Valluzzi R, Kaplan DL (2004) Structure and properties of silk hydrogels. Biomacromolecules 5:786–792CrossRef
2. 2.
   Altman GH, Horan RL, Lu HH, Moreau J, Martin I, Richmond JC, Kaplan DL (2002) Silk matrix for tissue engineered anterior cruciate ligaments. Biomaterials 23:4131–4141CrossRef
3. 3.
   Zhou W, He J, Du S, Cui S, Gao W (2011) Electrospun silk fibroin/cellulose acetate blend nanofibres: structure and properties. Iran Polym J 20:389–397
4. 4.
   Yeo JH, Lee KG, Lee YW, Kim SY (2003) Simple preparation and characteristics of silk fibroin microsphere. Eur Polym J 39:1195–1199CrossRef
5. 5.
   Wang XQ, Yucel T, Lu Q, Hu X, Kaplan DL (2010) Silk nanospheres and microspheres from silk/pva blend films for drug delivery. Biomaterials 31:1025–1035CrossRef
6. 6.
   Nair LS, Laurencin CT (2007) Biodegradable polymers as biomaterials. Prog Polym Sci 32:762–798CrossRef
7. 7.
   Hardy JG, Scheibel TR (2010) Composite materials based on silk proteins. Prog Polym Sci 35:1093–1115CrossRef
8. 8.
   Jia YT, Gong J, Gu XH, Kim HY, Dong J, Shen XY (2007) Fabrication and characterization of poly(vinyl alcohol)/chitosan blend nanofibers produced by electrospinning method. Carbohydr Polym 67:403–409CrossRef
9. 9.
   Wang H, Wang W, Jiang S, Jiang S, Zhai L, Jiang Q (2011) Poly(vinyl alcohol)/oxidized starch fibres via electrospinning technique: fabrication and characterization. Iran Polym J 20:551–558
10. 10.
    Lakouraj MM, Tajbakhsh M, Mokhtary M (2005) Synthesis and swelling characterization of cross-linked PVP/PVA hydrogels. Iran Polym J 14:1022–1030
11. 11.
    Dai L, Ying L (2002) Infrared spectroscopic investigation of hydrogen bonding in EVOH containing PVA fibers. Macromol Mater Eng 287:509–514CrossRef
12. 12.
    Tsukada M, Freddi G, Crighton JS (1994) Structure and compatibility of poly(vinyl alcohol)-silk fibroin (PVA/SF) blend films. J Polym Sci, Part B: Polym Phys 32:243–248CrossRef
13. 13.
    Um IC, Kweon HY, Park YH, Hudson S (2001) Structural characteristics and properties of the regenerated silk fibroin prepared from formic acid. Int J Biol Macromol 29:91–97CrossRef
14. 14.
    Um IC, Park YH (2007) The effect of casting solvent on the structural characteristics and miscibility of regenerated silk fibroin/poly(vinyl alcohol) blends. Fiber Polym 8:579–585CrossRef
15. 15.
    Dai L, Li J, Yamada E (2002) Effect of glycerin on structure transition of PVA/SF blends. J Appl Polym Sci 86:2342–2347CrossRef
16. 16.
    Zhang Q, Yang H, Fu Q (2004) Kinetics-controlled compatibilization of immiscible polypropylene/polystyrene blends using nano-SiO2 particles. Polymer 45:1913–1922CrossRef
17. 17.
    Tang S, Zou P, Xiong H, Tang H (2008) Effect of nano-SiO2 on the performance of starch/polyvinyl alcohol blend films. Carbohydr Polym 72:521–526CrossRef
18. 18.
    Xiong HG, Tang SW, Tang HL, Zou P (2008) The structure and properties of a starch-based biodegradable film. Carbohydr Polym 71:263–268CrossRef
19. 19.
    Zhuravlev LT (2000) The surface chemistry of amorphous silica zhuravlev model. Colloids Surf A 173:1–138CrossRef
20. 20.
    Lipatov YS, Nesterov AE, Ignatova TD, Nesterov DA (2002) Effect of polymer-filler surface interactions on the phase separation in polymer blends. Polymer 43:875–880CrossRef
21. 21.
    Shao L, Mu C, Huang Y, Ding S, Li X, Bai Y, Huang Y (2011) Enhancement of ink-receiving properties of SiO2/PVA composite films by using rare earth-modified SiO2 particles. Iran Polym J 20:955–967
22. 22.
    Nakane K, Yamashita T, Iwakir K, Suzuki F (1999) Properties and structure of poly(vinyl alcohol)/silica composites. J Appl Polym Sci 74:133–138CrossRef
23. 23.
    Xu Y, Li ZH, Fan W, Wu D, Sun Y, Rong L, Dong B (2004) Density fluctuation in silica-PVA hybrid gels determined by small-angle X-ray scattering. Appl Surf Sci 225:116–123CrossRef
24. 24.
    Hou A, Chen H (2010) Preparation and characterization of silk/silica hybrid biomaterials by sol–gel crosslinking process. Mater Sci Eng, B 167:124–128CrossRef
25. 25.
    Buckley AM, Greenblatt M (1994) The sol–gel preparation of silica gels. J Chem Educ 71:599–602CrossRef
26. 26.
    Li M, Minoura N, Dai L, Zhang L (2001) Preparation of porous poly(vinyl alcohol)-silk fibroin (PVA/SF) blend films. Macromol Mater Eng 286:529–534CrossRef
27. 27.
    Li M, Lu S, Wu Z, Tan K, Minoura N, Kuga S (2002) Structure and properties of silk fibroin-poly(vinyl alcohol) gel. Int J Biol Macromol 30:89–94CrossRef
28. 28.
    Lee KH (2004) Silk sericin retards the crystallization of silk fibroin. Macromol Rapid Commun 25:1792–1796CrossRef
29. 29.
    Venyaminov SY, Kalnin NN (1990) Quantitative IR spectrophotometry of peptide compounds in water (H2O) solutions. II. Amide absorption bands of polypeptides and fibrous proteins in α-, β-, and random coil conformations. Biopolymers 30:1259–1271CrossRef
30. 30.
    Shao L, Chung TS (2009) In situ fabrication of cross-linked PEO/silica reverse-selective membranes for hydrogen purification. Int J Hydrogen Energy 34:6492–6504CrossRef
31. 31.
    Stiubianu G, Cazacu M, Nicolescu A, Hamciuc V, Vlad S (2010) Silicone-modified cellulose. Crosslinking of the cellulose acetate with 1, 1, 3, 3-tetramethyldisiloxane by Pt-catalyzed dehydrogenative coupling. J Polym Res 17:837–845CrossRef
32. 32.
    Shao C, Kim HY, Gong J, Ding B, Lee DR, Park SJ (2003) Fiber mats of poly(vinyl alcohol)/silica composite via electrospinning. Mater Lett 57:1579–1584CrossRef
33. 33.
    Hajji P, David L, Gerard JF, Pascault JP, Vigier G (1999) Synthesis, structure, and morphology of polymer-silica hybrid nanocomposites based on hydroxyethyl methacrylate. J Polym Sci, Part B: Polym Phys 37:3172–3187CrossRef
34. 34.
    Tsukada M, Freddi G, Kasai G (1994) Physical properties and phase separation structure of aniheraea pernyi/bombyx silk fibroin blend films. J Polym Sci, Part B: Polym Phys 32:1175–1182CrossRef
35. 35.
    Agarwal N, Hoagland DA, Farris RJ (1997) Effect of moisture absorption on the thermal properties of bombyx mori silk fibroin films. J Appl Polym Sci 63:401–410CrossRef
36. 36.
    Akatsuka M, Takezawa Y, Amagi S (2001) Influences of inorganic fillers on curing reactions of epoxy resins initiated with a boron trifluoride amine complex. Polymer 42:3003–3007CrossRef

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