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Cited by 364

The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

Fabrication and Characterization of Citric Acid-Modified Starch Nanoparticles/Plasticized-Starch Composites

Ma, Xiaofei, Jian, Ruijuan, Chang, Peter R., Yu, Jiugao·2008·Biomacromolecules

Abstract

Starch nanoparticles (SN) were prepared by delivering ethanol as the precipitant into starch-paste solution dropwise. Citric acid (CA) modified SN (CASN) were fabricated with the dry preparation technique. According to the characterization of CASN with Fourier transform infrared, X-ray diffraction, rapid visco analyzer, and scanning electron microscopy (SEM), amorphous CASN could not be gelatinized in hot water because of the cross-linking, and most of CASN ranged in size from about 50 to 100 nm. The nanocomposites were also prepared using CASN as the filler in glycerol plasticized-pea starch (GPS) matrix by the casting process. SEM revealed that CASN was dispersed evenly in the GPS matrix. As shown in dynamic mechanical thermal analysis, the introduction of CASN could improve the storage modulus and the glass transition temperature of CASN/GPS composites. The tensile yield strength and Young's modulus increased from 3.94 to 8.12 MPa and from 49.8 to 125.1 MPa, respectively, when the CASN contents varied from 0 to 4 wt %. Moreover, the values of water vapor permeability decreased from 4.76 x 10(-10) to 2.72 x 10(-10) g m(-1) s(-1) Pa(-1). The improvement of these properties could be attributed to the good interaction between CASN filler and GPS matrix. The comprehensive application of green chemistry principles were demonstrated in the preparation of CASN and CASN/GPS composites.

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Metadata

Authors
Ma, X., Jian, R., Chang, P. R., & Yu, J.
Venue
Biomacromolecules
Published
2008-10-10
Volume
9
Issue
11
Pages
3314-3320
ISSN
  • 1525-7797 (ISSN-L)
  • 1526-4602
OpenAlex
W2056110864
Cited by
364
References
23
FWCI
7.80
Type
journal article
Language
en
Open access
closed

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