Premium
Graft polycondensation of microfibrillated jute cellulose with oligo( L ‐lactic acid) and its properties
Author(s) -
Khan G. M. Arifuzzaman,
Haque M. Ahsanul,
Terano Minoru,
Alam Md. Shamsul
Publication year - 2014
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.40139
Subject(s) - condensation polymer , crystallinity , fourier transform infrared spectroscopy , thermal stability , polymer chemistry , materials science , cellulose , thermogravimetric analysis , chemical engineering , grafting , x ray photoelectron spectroscopy , polymer , nuclear chemistry , chemistry , organic chemistry , composite material , engineering
In order to improve the compatibility with different polymer matrices, microfibrillated jute cellulose (MFJC) was surface grafted by oligo( l ‐lactic acid) (OLA) via graft polycondensation reaction catalyzed by Sn(Oct) 2 in toluene medium. The effects of the OLA concentration, Sn(Oct) 2 concentration, reaction time, temperature, and pressure on the progress of the graft polycondensation were investigated. Maximum grafting was found 44% at optimum reaction condition. The observation was confirmed by Fourier transform infrared spectroscopy, 13 C‐NMR spectrometry, and X‐ray photoelectron spectroscopy. The morphology and crystalline structure of the graft copolymer (MFJC‐ g ‐OLA) were examined by scanning electron microscopy and wide angle X‐ray diffraction, respectively. Measurements showed that initial morphological integrity of MFJC changed due to incorporation of amorphous OLA onto MFJC surface, as a result decreases crystallinity. Extracted MFJC‐ g ‐OLA was also characterized by thermo‐gravimetric analysis. Results reflect the enhanced hydrophobicity and thermal stability of the MFJC as a consequence of this modification. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40139.