Author/Authors :
Mas’ud، Zainal Alim نويسنده Department of Chemistry, Bogor Agricultural University, Dramaga Campus, Bogor, 16680, Indonesia , , Khotib، Mohammad نويسنده Department of Chemistry, Bogor Agricultural University, Dramaga Campus, Bogor, 16680, Indonesia , , Farid، Muhamad نويسنده Department of Chemistry, Bogor Agricultural University, Dramaga Campus, Bogor, 16680, Indonesia , , Nur، Anwar نويسنده Department of Chemistry, Bogor Agricultural University, Dramaga Campus, Bogor, 16680, Indonesia , , amroni، Muhamad نويسنده Department of Chemistry, Bogor Agricultural University, Dramaga Campus, Bogor, 16680, Indonesia ,
Abstract :
Abstract
Background: Cassava waste pulp from the tapioca industry is abundant in Indonesia. However, there have been few
Indonesian or international papers describing research on the possible use of cassava waste pulp as a
superabsorbent after modification. The goal of this work was to increase the added value of cassava waste pulp by
converting it into a superabsorbent. This conversion was carried out by a graft copolymerization of cassava waste
pulp using acrylamide, ammonium persulfate, and N,N?-methylene-bisacrylamide as a monomer, an initiator, and a
crosslinker, respectively. The copolymerization was conducted at 70°C for 3 h and saponified with 1 M NaOH for 2 h.
Results: The superabsorbent had a maximum water absorption capacity of 1,014 g/g at pH 7.3; the absorbency was
affected by the salinity of the medium. The rate parameter for absorption in distilled water was 5.4 min. The
formation of a superabsorbent was confirmed by FTIR spectroscopy, as the spectra exhibited all characteristic bands
of both cassava waste pulp and acrylamide.
Conclusion: Cassava waste pulp has a great potential to be used as a superabsorbent, which could give added
value to cassava.
