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Formation of Poly(propylene)‐Based Biocomposite Films and Their Use in the Attachment of Methylene Blue
Author(s) -
Cavallo Jesica A.,
Gomez Cesar G.,
Strumia Miriam C.
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000047
Subject(s) - methylene blue , polymer chemistry , acrylic acid , chitosan , biocomposite , ascorbic acid , chemistry , polymerization , redox , materials science , polymer , organic chemistry , composite number , copolymer , catalysis , composite material , food science , photocatalysis
Biocomposite PP ‐g‐ PAAc‐CS films based on PP were generated and utilized as support of methylene blue, a thiazidic dye. Using a photograft polymerization of acrylic acid, the PP film was functionalized with carboxyl groups (PP ‐g‐ PAAc), which attached chitosan by electrostatic bond. A longer poly(acrylic acid) chain or a higher CS immobilization temperature led to a higher chain interpenetration and crosslinking reaction. Immobilized MB confirmed to possess redox activity from its reaction with ascorbic acid, where the dye decomposition rate ( $R'_{\rm d} $ ) increases together with the chain interpenetration, then decreasing with the increase in the crosslinking degree.