Influence of chitosan and epoxy cross-linking on physical properties of binary blends

In this study, blends of chitosan (Cs) and bisphenol-F-diglycidyl ether (3.80 × 10 −3 to 3.80 × 10 −2  mol) were cast by the solution route. FT-IR results suggested that chitosan was cross-linked at terminal amino groups through diepoxide linkage. The chitosan films became less flexible and stiffer...

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Bibliographic Details
Published in:International journal of polymer analysis & characterization 2016-02, Vol.21 (2), p.163-174
Main Authors: Jabeen, Saira, Saeed, Shaukat, Kausar, Ayesha, Muhammad, Bakhtiar, Gul, Sagheer, Farooq, Muhammad
Format: Article
Language:English
Subjects:
Bisphenol-F-diglycidyl ether
Blending
Blends
Chitosan
Crosslinking
Elongation
Ethers
Polymer blends
solution casting
Terminals
water absorption
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Summary:In this study, blends of chitosan (Cs) and bisphenol-F-diglycidyl ether (3.80 × 10 −3 to 3.80 × 10 −2  mol) were cast by the solution route. FT-IR results suggested that chitosan was cross-linked at terminal amino groups through diepoxide linkage. The chitosan films became less flexible and stiffer upon reaction with epoxy. Blending improved percentage elongation (31%) and toughness (10 MPa), whereas Young's modulus (145 MPa) and tensile strength (45 MPa) were decreased. Extent of weight loss in Cs/BPFDGE was lower (15%) than that of original precursors (chitosan 33%). Moreover, blending of chitosan with BPFDGE increased water absorption properties due to generation of hydrophilic −OH groups.
ISSN:1023-666X
1563-5341
DOI:10.1080/1023666X.2016.1131404