Abstract
Biocomposites comprising acidified chitosan (CTS) encapsulated in partially cross-linked natural rubber (NR) matrices (CTS-e-NR) were prepared and characterized by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and field emission scanning electron microscopy (FE-SEM). The results of FT-IR, TGA and FE-SEM revealed that CTS was merely encapsulated within partially cross-linked natural rubber, and no chemical interaction was observed between CTS and NR. Soil burial biodegradation studies indicated that CTS-e-NR was degraded beyond any doubt, and weight loss of 48.98% was observed within 8 months. The release behaviour of CTS-e-NR was investigated in distilled water, where the naphthols (pesticide precursors) 1-hydroxynaphthalene (1-N), 2-hydroxynaphthalene (2-N), 1,4-dihydroxynaphthalene (1,4-N) and 2,6-dihydroxynaphthalene (2,6-N) were used as model pesticides. The percentage released in the first 24 h was found to be 7.38, 4.39, 2.96 and 6.95%, while 62.69, 60.64, 22.68 and 40.985% was released at the 35th day, for 1-N, 2-N, 1,4-N and 2,6-N, respectively. The release of naphthols followed non-Fickian diffusion: the combination of both polymer erosion and diffusion release mechanisms. In addition, the release behaviour was found to be consistently controlled and prolonged over a period of 35 days. Therefore, CTS-e-NR is strongly recommended for the controlled-release application of real pesticides.
Similar content being viewed by others
References
Damalas CA, Eleftherohorinos IG (2011) Pesticide exposure, safety issues, and risk assessment indicators. Int J Env Resea Public Health 8:1402–1419
Pimentel D (2005) Environmental and economic costs of the application of pesticides primarily in the United States. Envir Deve Sustain 7:229–252
Hanazato T (2001) Pesticide effects on freshwater zooplankton: an ecological perspective. Environ Pollut 112:1–10
Hela DG, Lambropoulou DA, Konstantinou IK, Albanis TA (2005) Environmental monitoring and ecological risk assessment for pesticide contamination and effects in Lake Pamvotis, northwestern Greece. Environ Toxic Chem 24:1548–1556
Abdollahi M, Ranjbar A, Shadnia S, Nikfar S, Rezaiee A (2004) Pesticides and oxidative stress: a review. Medic Sci Monitor 10:141–147
Li J, Yao J, Li Y, Shao Y (2012) Controlled release and retarded leaching of pesticides by encapsulating in carboxymethyl chitosan /bentonite composite gel. J Environ Sci Health Part B 47:795–803
Celis R, Hermosín MC, Carrizosa MJ, Cornejo J (2002) Inorganic and organic clays as carriers for controlled release of the herbicide hexazinone. J Agricu Food Chem 50:2324–2330
Rahim M, Mas Haris MRH (2015) Application of biopolymer composites in arsenic removal from aqueous medium: a review. J Radia Resea App Sci 8:255–263
Rahim M, Mas Haris MRH (2019) Chromium (VI) removal from neutral aqueous media using banana trunk fibers (BTF)-reinforced chitosan-based film, in comparison with BTF, chitosan, chitin and activated carbon. SN App Sci 1:1180
Rahim M, Abu N, Mas Haris MRH (2016) The effect of pH on the slow-release behaviour of 1- and 2-naphthol from chitosan film. Cogent Chem 2:1234345
Jayakumar R, Reis R, Mano J (2006) Chemistry and applications of phosphorylated chitin and chitosan. e-Polymers 6:447–462
Vu YT, Mark JE, Pham LH, Engelhardt M (2001) Clay nanolayer reinforcement of cis-1, 4-polyisoprene and epoxidized natural rubber. J App Polym Sci 82:1391–1403
Siler DJ, Cornish K, Hamilton RG (1996) Absence of cross-reactivity of IgE antibodies from subjects allergic to Hevea brasiliensis latex with a new source of natural rubber latex from guayule (Parthenium argentatum). J Aller Clin Immun 98:895–902
George U, Andy J, Joseph A (2014) Biochemical and phyto-chemical characteristics of Rubber Latex (Hevea brasiliensis) obtained from a tropical environment in Nigeria. Int J Sci Tech Resea 3:377–380
Rahim M, Mas Haris MRH (2019) Banana trunk fibers (BF) immobilized in chitosan (CS) natural composites (BF-i-CS), and its application in controlled-release of pesticides. J Nat Fibers. https://doi.org/10.1080/15440478.15442019.11691119
Mas Haris MRH, Rahim M (2016) Development and validation of UV–VIS spectrophotometric method for quantitative determination of 1– and 2–naphthols in chloroform and water. Der Pharm Lett 8:205–213
Rahim M, Mas Haris MRH (2016) Application of advanced polymeric materials for controlled release pesticides. IOP Conf Ser Mater Sci Eng 146:012020
Wan Y, Luo H, He F, Liang H, Huang Y, Li X (2009) Mechanical, moisture absorption, and biodegradation behaviours of bacterial cellulose fibre-reinforced starch biocomposites. Comp Sci Tech 69:1212–1217
Danna CS, Cavalcante DGSM, Gomes AS, Kerche-Silva LE, Yoshihara E, Osorio-Román IO, Salmazo LO, Rodríguez-Pérez MA, Aroca RF, Job AE (2016) Silver nanoparticles embedded in natural rubber films: synthesis, characterization, and evaluation of in vitro toxicity. J Nanomater 2016:2368630
Steiner G, Zimmerer C (2013) Natural rubber (Latex). Polymer solids and polymer melts—definitions and physical properties I. 583–589
Aielo PB, Borges FA, Romeira KM, Miranda MCR, Arruda LBd, L. Filho PN, Drago BdC, Herculano RD, (2014) Evaluation of sodium diclofenac release using natural rubber latex as carrier. Mater Res 17:146–152
Peniche C, Argüelles-Monal W, Davidenko N, Sastre R, Gallardo A, San Román J (1999) Self-curing membranes of chitosan/PAA IPNs obtained by radical polymerization: preparation, characterization and interpolymer complexation. Biomaterials 20:1869–1878
Alhwaige AA, Agag T, Ishida H, Qutubuddin S (2013) Biobased chitosan/polybenzoxazine cross-linked films: preparation in aqueous media and synergistic improvements in thermal and mechanical properties. Biomacromol 14:1806–1815
Arroyo M, Lopez-Manchado M, Herrero B (2003) Organo-montmorillonite as substitute of carbon black in natural rubber compounds. Polymer 44:2447–2453
Zhao F, Bi W, Zhao S (2011) Influence of crosslink density on mechanical properties of natural rubber vulcanizates. J Macromol Sci, Part B 50:1460–1469
Dash S, Murthy PN, Nath L, Chowdhury P (2010) Kinetic modeling on drug release from controlled drug delivery systems. Acta Pol Pharm 67:217–223
Yang X, Trinh HM, Agrahari V, Sheng Y, Pal D, Mitra AK (2015) Nanoparticle-based topical ophthalmic gel formulation for sustained release of hydrocortisone butyrate. AAPS PharmSciTech 17:294–306
Wang B, Liu Z, Liao S, Li C (2015) Preparation and properties of water-swellable natural rubber vulcanizates. Mater Res Innov 19:198–203
Acknowledgements
The authors would like to thank the Universiti Sains Malaysia (Grant No. 1001/PKIMIA/814124) and MyBrain15, Kementerian Pengajian Tinggi Malaysia for financial assistance. AMREC, SIRIM Berhad is gratefully acknowledged for their support in using VPSEM. One of the researchers (Muhammad Rahim) is grateful to The World Academy of Sciences (TWAS) and Universiti Sains Malaysia (USM) for providing a TWAS-USM Fellowship.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Rahim, M., Mas Haris, M.R.H. & Abu, N. Encapsulation of acidified chitosan within partially cross-linked natural rubber matrices and their potential slow-release application. J Rubber Res 23, 245–256 (2020). https://doi.org/10.1007/s42464-020-00054-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s42464-020-00054-8