Interlocked chitosan/poly(dl-lactide) blends

Wu, Hua; Wan, Ying; Cao, Xiaoying; Wu, Qingyin

doi:10.1016/j.matlet.2007.05.033

Cited by 23 publications

(12 citation statements)

References 15 publications

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“…The continuous degradation observed in TGA curves of blended films (Figure 1) together with the absence of any phase separation confirms that chitosan and agar form highly compatible blends. This is highly associated with the interactions between agar and chitosan through hydrogen bonding formation between their functional groups (-OH and -NH 2 groups in chitosan and -OH groups in agar) 16 .…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Chitosan/Agar Blended Films: Part 2. Thermal, Mechanical, and Surface Properties

El-Hefian

Nasef

Yahaya

2012

E-Journal of Chemistry

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Chitosan/agar (CS/AG) films were prepared by blending different proportions of chitosan and agar (considering chitosan as the major component) in solution forms. The thermal stability of the blended films was studied using thermal gravimetric analysis (TGA). It was revealed that chitosan and agar form a compatible blend. Studying the mechanical properties of the films showed a decrease in the tensile strength and elongation at break with increasing agar content. Blending of agar with chitosan at all proportions was found to form hydrogel films with enhanced swelling compared to the pure chitosan one. Static water contact angle measurements confirmed the increasing affinity of the blended films towards water suggesting that blending of agar with chitosan improves the wettability of the obtained films.

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Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Chitosan/Agar Blended Films: Part 2. Thermal, Mechanical, and Surface Properties

El-Hefian

Nasef

Yahaya

2012

E-Journal of Chemistry

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“…The degradation for chitosan usually occurs between 200–540°C which is seen in the thermograms which include chitosan. Specifically, between 200–300°C, the degradation of the amine and N-acetyl of chitosan occurs [39–41]. Both the CNTs-PMMA derivatives indicate that degradation of PMMA occurs near 400°C.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization and stability of chitosan and poly(methyl methacrylate) grafted carbon nanotubes

Carson¹,

Hibbert²,

Akindoju³

et al. 2012

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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The single walled carbon nanotubes (CNTs) were effectively functionalized through grafting with chitosan (CTS) and poly(methyl methacrylate) (PMMA). Prior to grafting reaction, the carboxylated SWNCTs (SWNCTs-COOH) were obtained by treating pristine CNTs with a mixture of 3:1 (v/v) H2SO4 and HNO3, and the successive treatment of SWNCTs-COOH with SOCl2 yielded the acylated CNTs (CNTs-COCl). The functionalized derivatives of CNTs were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, atomic force microscopy, scanning electron microscopy and transmission electron microscopy. Both CTS and PMMA grafted CNTs showed better dispersability in acetic acid and tetrahydrofuran, in addition to higher stability in solution.

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“…It is well known that the mechanical properties of blends are strongly dependent on their morphology and the control of the morphology is of vital importance for the final properties of the product [21,22]. SEM images of cryofractured surfaces of PVA/WPU blends with varying weight ratio of PVA/WPU were shown in Fig.…”

Section: Morphology Of Pva/wpu Blendsmentioning

confidence: 99%

Structure and properties of polyvinyl alcohol/polyurethane blends

Wang

2015

Composites Part B: Engineering

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Interlocked chitosan/poly(dl-lactide) blends

Cited by 23 publications

References 15 publications

Preparation and Characterization of Chitosan/Agar Blended Films: Part 2. Thermal, Mechanical, and Surface Properties

Preparation and Characterization of Chitosan/Agar Blended Films: Part 2. Thermal, Mechanical, and Surface Properties

Synthesis, characterization and stability of chitosan and poly(methyl methacrylate) grafted carbon nanotubes

Structure and properties of polyvinyl alcohol/polyurethane blends

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