Synthesis, characterization and application of acryloyl chitosan anchored copolymer towards algae flocculation

Dharani M; Balasubramanian S

doi:10.1016/j.carbpol.2016.07.031

Synthesis, characterization and application of acryloyl chitosan anchored copolymer towards algae flocculation

Carbohydr Polym. 2016 Nov 5:152:459-467. doi: 10.1016/j.carbpol.2016.07.031. Epub 2016 Jul 9.

Authors

Dharani M¹, Balasubramanian S²

Affiliations

¹ Department of Inorganic Chemistry, Guindy Campus, University of Madras, Chennai 600 025, India.
² Department of Inorganic Chemistry, Guindy Campus, University of Madras, Chennai 600 025, India. Electronic address: bala2010@gmail.com.

PMID: 27516293
DOI: 10.1016/j.carbpol.2016.07.031

Abstract

A novel water soluble flocculant AC-g-P(DMC-MACPPC) was synthesized by free radical polymerization of [2-(methacryloyloxy) ethyl] trimethylammonium chloride (DMC) and 4-methacryloyl 1-cyclopentyl piperazinium chloride (MACPPC), grafted on to acryloyl chitosan (AC). The grafting of copolymer was confirmed by DRS-UV, FTIR, NMR, Raman, XRD and XPS spectral techniques. The AC-g-P(DMC-MACPPC) exhibits higher flocculation efficiency towards harvesting of C. vulgaris micro algae, when compared to that of copolymer P(DMC-MACPPC) and homo polymer PMACPPC. The higher efficiency exhibited by the grafted copolymer can be attributed to the increase in positive charge and molecular weight after grafting on to acryloyl chitosan. The grafted copolymer AC-g-P(DMC-MACPPC) is very easy to synthesize, economical and water soluble which makes it a promising flocculant in the algae harvesting process.

Keywords: Acryloyl chitosan; Algae flocculation; Copolymer; Piperazine and structural modification.

MeSH terms

Chitosan* / chemical synthesis
Chitosan* / chemistry
Chitosan* / pharmacology
Chlorella vulgaris*
Flocculation / drug effects

Substances

Chitosan