Dynamic and structural evaluation of poly(3-hydroxybutyrate) layered nanocomposites

被引:14
作者
Rocha e Silva, Mariana Bruno [1 ]
Bruno Tavares, Maria Ines [1 ]
da Silva, Emerson Oliveira [1 ]
Cucinelli Neto, Roberto Pinto [1 ]
机构
[1] Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano, Ctr Tecnol, Ilha Fundao, BR-21941598 Rio De Janeiro, RJ, Brazil
关键词
PHB; LF-NMR; Nanocomposite; NYLON-6 CLAY NANOCOMPOSITES; SPECTROSCOPY; CRYSTALLIZATION; FILMS;
D O I
10.1016/j.polymertesting.2012.09.006
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Layered poly(3-hydroxybutyrate) (PHB) nanostructured materials were prepared containing two commercial organophilic clays, Viscogel B8 and Viscogel S7, at clay concentrations of 1%, 3%, 5%, 7% and 10%. The materials obtained were characterized by the traditional methods of X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry and optical microscopy, as well as an alternative method, low-field nuclear magnetic resonance. The nanostructured materials obtained presented an excellent degree of intercalation/exfoliation and the clay was able to promote changes in the polymer's structure, reducing its crystallinity degree. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:165 / 174
页数:10
相关论文
共 24 条
[1]  
Ayala G., 2009, EUR POLYM J, V45, P3217
[2]   Polypropylene-clay nanocomposite structure probed by HNMR relaxometry [J].
Bruno Tavares, Maria Ines ;
Nogueir, Regina Freitas ;
da Silva San Gil, Rosane Aguiar ;
Preto, Monica ;
da Silva, Emerson Oliveira ;
Rocha e Silva, Mariana Bruno ;
Miguez, Eduardo .
POLYMER TESTING, 2007, 26 (08) :1100-1102
[3]   Biodegradable Particulate Delivery of Vascular Endothelial Growth Factor Plasmid from Polycaprolactone/Polyethylenimine Electrospun Nanofibers for the Treatment of Myocardial Infarction [J].
Che, Hui-Lian ;
Muthiah, Muthunarayanan ;
Ahn, Youngkeun ;
Son, Sejin ;
Kim, Won Jong ;
Seonwoo, Hoon ;
Chung, Jong Hoon ;
Cho, Chong-Su ;
Park, In-Kyu .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2011, 11 (08) :7073-7077
[4]   Production and evaluation of biodegradable composites based on PHB-PHV copolymer [J].
Chen, LJ ;
Wang, M .
BIOMATERIALS, 2002, 23 (13) :2631-2639
[5]   Poly-ε-caprolactone based formulations for drug delivery and tissue engineering: A review [J].
Dash, Tapan K. ;
Konkimalla, V. Badireenath .
JOURNAL OF CONTROLLED RELEASE, 2012, 158 (01) :15-33
[6]  
e Silva M. B. R., 2008, MAT RES, V11, P483
[7]   Fourier-transform infrared (FTIR) spectroscopy for monitoring and determining the degree of crystallisation of polyhydroxyalkanoates (PHAs) [J].
Kansiz, Mustafa ;
Dominguez-Vidal, Ana ;
McNaughton, Don ;
Lendl, Bernhard .
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2007, 388 (5-6) :1207-1213
[8]  
Kylest R. E., 2003, MACROMOLECULES
[9]  
Lenz R. W., 2004, BIOMACROMOLECULES, V6
[10]   The effect of decabromodiphenyl oxide and antimony trioxide on the flame retardation of ethylene-propylene-diene copolymer/polypropylene blends [J].
Li, Y ;
Wang, WJ ;
Xiao, WD .
POLYMER DEGRADATION AND STABILITY, 2004, 86 (01) :69-73