Effect of carbon nanotube functionalization on the structure and properties of poly(3-hydroxybutyrate)/MWCNTs biocomposites

被引：13

作者：

Huh, Mongyoung ^{[1
]}

Jung, Min Hae ^{[1
]}

Park, Young Soo ^{[1
]}

Kim, Byung-Joo ^{[1
]}

Kang, Min Suk ^{[2
]}

Holden, Peter J. ^{[3
]}

Yun, Seok Il ^{[4
]}

机构：

[1] Korea Inst Carbon Convergence Technol, Jeonbuk 561844, South Korea

[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea

[3] Australian Nucl Sci & Technol Org, Kirrawee, NSW 2232, Australia

[4] Sangmyung Univ, Dept Ind Chem, Seoul 110743, South Korea

来源：

MACROMOLECULAR RESEARCH | 2014年 / 22卷 / 07期

关键词：

poly(3-hydroxybutyrate); multi walled carbon nanotubes (MWCNTs); biocomposite; covalent functionalization; alkyl chain; crystallization kinetics; storage modulus; MECHANICAL-PROPERTIES; GREEN MATERIALS; FUTURE; POLYHYDROXYALKANOATES; POLYHYDROXYBUTYRATE; NANOCOMPOSITES; BIOTECHNOLOGY; BEHAVIOR; PLASTICS;

D O I：

10.1007/s13233-014-2141-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Multi walled carbon nanotubes (MWCNTs) covalently functionalized with an alkyl chain exhibited a better dispersion in poly(3-hydroxybutyrate) (PHB) solutions and cast films as compared with acid-treated MWCNTs (MWCNT-COOH) due to the much improved solubility in chloroform. The alkylated MWCNTs more effectively strengthened PHB composites than non-alkylated MWCNTs due to their uniform dispersion as well as stronger interaction of alkylated MWCNTs with the PHB matrix. Both acid-treated and alkylated MWCNTs added to PHB matrix facilitated crystallization kinetics. However the crystallization kinetics were found to be slower for the alkylated MWCNTs/PHB composites than acid-treated MWCNTs composites. The results may be ascribed to the inhibitory effect on PHB crystallization caused by the steric hindrance of the long alkyl chains attached to MWCNTs.

引用

页码：765 / 772

页数：8

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