Surface chemical modification of polypropylene fiber waste by H 2 SO 4 : Mechanistic investigation and application as cation‐exchange adsorbent | Zendy

Matos Jamerson Peixoto | Zendy; Sansiviero Maria Terezinha Caruzo | Zendy; Lago Rochel Montero | Zendy

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Surface chemical modification of polypropylene fiber waste by H 2 SO 4 : Mechanistic investigation and application as cation‐exchange adsorbent

Author(s) -

Matos Jamerson Peixoto,

Sansiviero Maria Terezinha Caruzo,

Lago Rochel Montero

Publication year - 2009

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.30633

Subject(s) - adsorption , polypropylene , sulfuric acid , cationic polymerization , ion exchange , sulfonic acid , methylene blue , fiber , materials science , polymer chemistry , chemical engineering , molecule , nuclear chemistry , chemistry , inorganic chemistry , organic chemistry , composite material , catalysis , ion , photocatalysis , engineering

In this work, polypropylene (PP) fiber waste was modified by the reaction with concentrated H 2 SO 4 . IR, TG, Raman, CHN, acid titration, SEM, and XRD suggested that sulfuric acid at about 105°C reacts with PP to produce mainly surface sulfonic groups. The kinetic experiments showed that these SO 3 H groups decompose to form SO 2 gas leading to an aromatization of the polymer to form amorphous and graphitic carbon. Adsorption isotherms of the cationic model molecule methylene blue showed that the modified PP fibers have a great potential as ion‐exchange adsorbent. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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