Henky Muljana*, Ivana Hasjem, Merianawati Sinatra, Dicky Joshua Pesireron, Michael Wilbert Puradisastra, Ryan Hartono, Kevin Yovan Hermanto, Tony Handoko
Journal of Renewable Materials, Vol.11, No.12, pp. 4039-4060, 2023, DOI:10.32604/jrm.2023.031261
Abstract This research paper describes the synthesis of thermo-reversible cross-linking of sago starch by grafting a furan
pendant group (methyl 2-furoate) onto the starch backbone, followed by a Diels-Alder (DA) reaction of the furan
functional group with 1,1′-(methylenedi-4,1-phenylene) bismaleimide (BM). The proof of principles was provided
by FTIR and 1H-NMR analyses. The relevant FTIR peaks are the carbonyl peak (υ C=O sym) at 1721 cm−1
; the
two peaks appeared after DA cross-linking, i.e., at 1510 cm−1 (corresponding to υ CH=CH BM aromatic rings,
stretching vibrations), and at 1173 cm−1 (assigned to cycloadduct (C-O-C, δ DA ring)) while the 1H-NMR result… More >
Graphic Abstract
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