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El Idrissi A, Channab BE, Essamlali Y, Zahouily M. Superabsorbent hydrogels based on natural polysaccharides: Classification, synthesis, physicochemical properties, and agronomic efficacy under abiotic stress conditions: A review. Int J Biol Macromol 2024; 258:128909. [PMID: 38141703 DOI: 10.1016/j.ijbiomac.2023.128909] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 11/22/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Superabsorbent polymers (SAPs) are a class of polymers that have attracted tremendous interest due to their multifunctional properties and wide range of applications. The importance of this class of polymers is highlighted by the large number of publications, including articles and patents, dealing with the use of SAPs for various applications. Within this framework, this review provides an overview of SAPs and highlights various key aspects, such as their history, classification, and preparation methods, including those related to chemically or physically cross-linked networks, as well as key factors affecting their performance in terms of water absorption and storage. This review also examines the potential use of polysaccharides-based SAPs in agriculture as soil conditioners or slow-release fertilizers. The basic aspects of SAPs, and methods of chemical modification of polysaccharides are presented and guidelines for the preparation of hydrogels are given. The water retention and swelling mechanisms are discussed in light of some mathematical empirical models. The nutrient slow-release kinetics of nutrient-rich SAPs are also examined on the basic of commonly used mathematical models. Some examples illustrating the advantages of using SAPs in agriculture as soil conditioners and agrochemical carriers to improve crop growth and productivity are presented and discussed. This review also attempts to provide an overview of the role of SAPs in mitigating the adverse effects of various abiotic stresses, such as heavy metals, salinity, and drought, and outlines future trends and prospects.
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Affiliation(s)
- Ayoub El Idrissi
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II Casablanca University, Morocco; MAScIR Foundation, VARENA Center, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Badr-Eddine Channab
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II Casablanca University, Morocco
| | - Younes Essamlali
- MAScIR Foundation, VARENA Center, Mohammed VI Polytechnic University, Ben Guerir, Morocco.
| | - Mohamed Zahouily
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II Casablanca University, Morocco; MAScIR Foundation, VARENA Center, Mohammed VI Polytechnic University, Ben Guerir, Morocco.
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2
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Rodríguez-Ramírez CA, Tasqué JE, Garcia NL, D'Accorso NB. Hemicelluloses hydrogel: Synthesis, characterization, and application in dye removal. Int J Biol Macromol 2023; 253:127010. [PMID: 37734519 DOI: 10.1016/j.ijbiomac.2023.127010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/14/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
Novel materials using biowaste as adsorbents in wastewater treatment have been allocated considerable interest. Herein, we present the synthesis of different hydrogels of crosslinked polyacrylamide in presence of hemicelluloses with/ without bentonite, using a soft reaction condition. The structure of new hydrogels was characterized by spectroscopic, thermal and microscopic experiments. The semi-interpenetrated network with hemicelluloses: 10 %; acrylamide 79 %; bentonite 10 %; N,N,N',N'-tetramethylethylenediamine: 1 % allows reducing 20 % the use of non-renewable acrylamide, without changing its decomposition temperatures and keeping its water absorption capacity. This hydrogel was applied to dye removals, such as rhodamine B, methylene red and methylene blue in aqueous solutions. In the case of methylene blue, highest removal is observed with maximum adsorption of qmax = 140.66 mg/g, compared to material without hemicelluloses that only a qmax = 88.495 mg/g. The adsorption kinetics and equilibrium adsorption isotherms are in accordance with the pseudo-second-order kinetic model and Langmuir isotherm model, respectively. The developed hydrogel from hemicelluloses represents a potential alternative adsorbent for a sustainable system of sewage treatment.
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Affiliation(s)
- C A Rodríguez-Ramírez
- Universidad de Buenos Aires, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina; CONICET- Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), Buenos Aires, Argentina
| | | | - Nancy Lis Garcia
- CONICET- Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), Buenos Aires, Argentina
| | - Norma B D'Accorso
- Universidad de Buenos Aires, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina; CONICET- Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), Buenos Aires, Argentina.
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Srikaew M, Jumpapaeng P, Suwanakood P, Kaiyasuan C, Promarak V, Saengsuwan S. Rapid synthesis and optimization of UV-photopolymerized cassava starch-based superabsorbent hydrogels as a biodegradable, low-cost, and effective adsorbent for MB removal. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Nuinu P, Srichan S, Ngamlerd A, Wichian C, Prasertsri S, Saengsuwan S, Hinchiranan N, Vudjung C. Preparation of environment‐friendly hydrophilic rubber from natural rubber grafted with sodium acrylate by reactive melt mixing. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25968] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pranee Nuinu
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
| | - Sansanee Srichan
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
| | - Anuchit Ngamlerd
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
| | - Chamaiporn Wichian
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
| | - Sarawut Prasertsri
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
| | - Sayant Saengsuwan
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH‐CIC), Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
| | - Napida Hinchiranan
- Department of Chemical Technology, Faculty of Science Chulalongkorn University Bangkok Thailand
| | - Chaiwute Vudjung
- Laboratory of Advanced Polymer and Rubber Materials (APRM), Department of Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani Thailand
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Sangeetha E, Narayanan A, Dhamodharan R. Super water-absorbing hydrogel based on chitosan, itaconic acid and urea: preparation, characterization and reversible water absorption. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03641-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen J, Wu J, Raffa P, Picchioni F, Koning CE. Superabsorbent Polymers: From long-established, microplastics generating systems, to sustainable, biodegradable and future proof alternatives. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2021.101475] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Designing and application of reactive extrusion with twice initiations for graft copolymerization of acrylamide on starch. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Chavan P, Sinhmar A, Nehra M, Thory R, Pathera AK, Sundarraj AA, Nain V. Impact on various properties of native starch after synthesis of starch nanoparticles: A review. Food Chem 2021; 364:130416. [PMID: 34192635 DOI: 10.1016/j.foodchem.2021.130416] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 01/05/2023]
Abstract
In recent years, interdisciplinary research is more focused on particle size, which helps in exploring the relation between micro and macroscopic properties of various materials. Starch nanoparticles are generally synthesized by using acid/enzymatic hydrolysis, gamma irradiation, simple nanoprecipitation, ultra-sonication, and homogenization treatments. The properties like amylose content, pasting, rheological, morphological, size distribution, etc. are affected after the formation of nanoparticles from starch. This study emphasizes how various properties are changed in starch nanoparticles. Starch nanoparticles are mainly used in the formulation of nano-emulsion, nano starch-based composite film, and drug delivery. The impact on various native starch properties after the preparation of starch nanoparticles are less reported. So, all the aspects related to various starch properties and their nanoparticles are extensively reviewed in this study so that the listed findings can be utilized in future processes to increase the various foods and non-food utilization of starch nanoparticles.
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Affiliation(s)
- Prafull Chavan
- School of Bioengineering and Food Technology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, Distt., Solan 173229, HP, India
| | - Archana Sinhmar
- School of Bioengineering and Food Technology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, Distt., Solan 173229, HP, India
| | - Manju Nehra
- Department of Food Science and Technology, Chaudhary Devi Lal University, Sirsa, Haryana, India
| | - Rahul Thory
- School of Bioengineering and Food Technology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, Distt., Solan 173229, HP, India.
| | - Ashok Kumar Pathera
- School of Bioengineering and Food Technology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, Distt., Solan 173229, HP, India
| | - Antony Allwyn Sundarraj
- Sri Shakti Institute of Engineering and Technology, Sri Shakti Nagar, Coimbatore 641062, TN, India
| | - Vikash Nain
- Department of Food Science and Technology, Chaudhary Devi Lal University, Sirsa, Haryana, India
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Preparation and Characterization of Carbon Fibers from Lyocell Precursors Grafted with Polyacrylamide via Electron-Beam Irradiation. Molecules 2021; 26:molecules26092459. [PMID: 33922535 PMCID: PMC8122947 DOI: 10.3390/molecules26092459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
Carbon fibers, which act as reinforcements in many applications, are often obtained from polyacrylonitrile (PAN). However, their production is expensive and results in waste problems. Therefore, we focused on producing carbon fibers from lyocell, a cellulose-based material, and analyzed the effects of the process parameters on their mechanical properties and carbon yields. Lyocell was initially grafted with polyacrylamide (PAM) via electron-beam irradiation (EBI) and was subsequently stabilized and carbonized. Thermal analysis showed that PAM grafting increased the carbon yields to 20% at 1000 °C when compared to that of raw lyocell, which degraded completely at about 600 °C. Stabilization further increased this yield to 55%. The morphology of the produced carbon fibers was highly dependent on PAM concentration, with fibers obtained at concentrations ≤0.5 wt.% exhibiting clear, rigid, and round cross-sections with smooth surfaces, whereas fibers obtained from 2 and 4 wt.% showed peeling surfaces and attachment between individual fibers due to high viscosity of PAM. These features affected the mechanical properties of the fibers. In this study, carbon fibers of the highest tensile strength (1.39 GPa) were produced with 0.5 wt.% PAM, thereby establishing the feasibility of using EBI-induced PAM grafting on lyocell fabrics to produce high-performance carbon fibers with good yields.
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Starch-Based Super Water Absorbent: A Promising and Sustainable Way to Increase Survival Rate of Trees Planted in Arid Areas. Polymers (Basel) 2021; 13:polym13081314. [PMID: 33923654 PMCID: PMC8073703 DOI: 10.3390/polym13081314] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/01/2021] [Accepted: 04/14/2021] [Indexed: 12/11/2022] Open
Abstract
This research aimed to scale up the production of starch-based super water absorbent (SWA) and to validate the practical benefits of SWA for agricultural applications. SWA was successfully prepared in an up-scaling production by radiation-induced graft polymerization of acrylic acid onto cassava starch. Chemical characterization by FTIR and thermal characterization by TGA showed results that differentiated starting materials from the prepared SWA, thus confirming effective preparation of starch-based SWA via radiation-induced graft polymerization. SEM results visibly revealed a highly porous morphology of the synthesized SWA, substantiating its high swelling ability. Results from the field tests, performed for two seasons, revealed that the prepared SWA was able to increase the survival rate of young rubber trees planted in arid area by up to 40%, while simultaneously enhancing the growth characteristics of the young rubber trees.
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Dispat N, Poompradub S, Kiatkamjornwong S. Synthesis of ZnO/SiO 2-modified starch-graft-polyacrylate superabsorbent polymer for agricultural application. Carbohydr Polym 2020; 249:116862. [PMID: 32933689 DOI: 10.1016/j.carbpol.2020.116862] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 11/17/2022]
Abstract
A bio-based superabsorbent polymer (SAP) for agricultural application was synthesized from modified starch (MS) to enhance its antibacterial property and biodegradability. The starch was modified by zinc oxide and tetraethyl orthosilicate via a sol-gel reaction under an acidic condition. Structural and morphological examinations were used to confirm the modification. The MS showed a good antibacterial activity against Staphylococcus aureus and Escherichia coli with 61.9 % and 99.9 % reduction in viable cells, respectively, after a 1 h exposure. The MS was then graft copolymerized with potassium acrylate monomer to synthesize a new MS-g-polyacrylate (PA) SAP. The grafting reaction was confirmed and the main factors for agricultural applications along with its biodegradation and antibacterial properties were achieved. The MS-g-PA SAP exhibited an excellent reusability and biodegradation. Importantly, the MS-g-PA SAP did not impose growth inhibition of mung bean (Vigna radiata), but provided some transient drought relief.
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Affiliation(s)
- Nonpan Dispat
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sirilux Poompradub
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand; Green Materials for Industrial Application Research Unit, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Suda Kiatkamjornwong
- Office of Research Affairs, Chulalongkorn University, Bangkok 10330, Thailand; FRS (T), The Royal Society of Thailand, Sanam Suepa, Dusit, Bangkok 10300, Thailand
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12
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Enhanced performance of urea–glyoxal polymer with oxidized cassava starch as wood adhesive. IRANIAN POLYMER JOURNAL 2019. [DOI: 10.1007/s13726-019-00760-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Weerapoprasit C, Prachayawarakorn J. Effects of Polymethacrylamide‐Grafted Branch on Mechanical Performances, Hydrophilicity, and Biodegradability of Thermoplastic Starch Film. STARCH-STARKE 2019. [DOI: 10.1002/star.201900068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chayapa Weerapoprasit
- Department of Chemistry, Faculty of ScienceKing Mongkut's Institute of Technology Ladkrabang (KMITL) Bangkok 10520 Thailand
| | - Jutarat Prachayawarakorn
- Department of Chemistry, Faculty of ScienceKing Mongkut's Institute of Technology Ladkrabang (KMITL) Bangkok 10520 Thailand
- Advanced Materials Research Unit, Faculty of ScienceKing Mongkut's Institute of Technology Ladkrabang (KMITL) Bangkok 10520 Thailand
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Bao X, Yu L, Shen S, Simon GP, Liu H, Chen L. How rheological behaviors of concentrated starch affect graft copolymerization of acrylamide and resultant hydrogel. Carbohydr Polym 2019; 219:395-404. [PMID: 31151540 DOI: 10.1016/j.carbpol.2019.05.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 05/06/2019] [Accepted: 05/09/2019] [Indexed: 01/22/2023]
Abstract
Corn starches with different amylose/amylopectin ratios were used to explore the effect of rheological behaviors of concentrated system on the graft copolymerization of acrylamide and resultant hydrogels, which sheds a light on their reactive extrusion process. The viscoelastic moduli of starch melts increased with increasing amylose content (AC), leading to a decreased extent of micro-mixing detected by a reduced rheokinetic rate. With increasing AC, the graft efficiency was decreased but with almost similar monomer conversion (about 87.5%) and nearly equivalent graft content. XRD and SAXS spectra revealed that the extent of retrogradation of the starches were increased and two-phase separation was enhanced for hydrogels with increasing AC. Interestingly, microscopic analysis showed the superabsorbent hydrogel from the starch with AC of 50% exhibited a gridding membrane porous structure, resulting in a higher water absorbent capacity of 550 g/g. This was attributed to the moderate crosslinking and the slightly greater graft content.
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Affiliation(s)
- Xianyang Bao
- Center for Polymer from Renewable Resources, SFSE, South China University of Technology, Guangzhou, Guangdong, 510640, China; CSIRO Manufacturing, Research Way, Clayton, Vic, 3168, Australia; Department of Materials Science and Engineering, Monash University, Melbourne, Vic, 3800, Australia
| | - Long Yu
- Center for Polymer from Renewable Resources, SFSE, South China University of Technology, Guangzhou, Guangdong, 510640, China; Sino-Singapore International Joint Research Institute, Guangzhou, Guangdong, 510663, China.
| | - Shirley Shen
- CSIRO Manufacturing, Research Way, Clayton, Vic, 3168, Australia
| | - George P Simon
- Department of Materials Science and Engineering, Monash University, Melbourne, Vic, 3800, Australia
| | - Hongsheng Liu
- Center for Polymer from Renewable Resources, SFSE, South China University of Technology, Guangzhou, Guangdong, 510640, China; Sino-Singapore International Joint Research Institute, Guangzhou, Guangdong, 510663, China
| | - Ling Chen
- Center for Polymer from Renewable Resources, SFSE, South China University of Technology, Guangzhou, Guangdong, 510640, China
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Ali A, Ahmed S. Recent Advances in Edible Polymer Based Hydrogels as a Sustainable Alternative to Conventional Polymers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6940-6967. [PMID: 29878765 DOI: 10.1021/acs.jafc.8b01052] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The over increasing demand of eco-friendly materials to counter various problems, such as environmental issues, economics, sustainability, biodegradability, and biocompatibility, open up new fields of research highly focusing on nature-based products. Edible polymer based materials mainly consisting of polysaccharides, proteins, and lipids could be a prospective contender to handle such problems. Hydrogels based on edible polymer offer many valuable properties compared to their synthetic counterparts. Edible polymers can contribute to the reduction of environmental contamination, advance recyclability, provide sustainability, and thereby increase its applicability along with providing environmentally benign products. This review is highly emphasizing on toward the development of hydrogels from edible polymer, their classification, properties, chemical modification, and their potential applications. The application of edible polymer hydrogels covers many areas including the food industry, agricultural applications, drug delivery to tissue engineering in the biomedical field and provide more safe and attractive products in the pharmaceutical, agricultural, and environmental fields, etc.
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Affiliation(s)
- Akbar Ali
- Department of Chemistry , Jamia Millia Islamia , New Delhi , 110025 , India
| | - Shakeel Ahmed
- Department of Chemistry , Government Degree College Mendhar , Jammu , Jammu and Kashmir , 185211 , India
- Higher Education Department , Government of Jammu and Kashmir , Jammu , 180001 , India
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Lee J, Park S, Roh HG, Oh S, Kim S, Kim M, Kim D, Park J. Preparation and Characterization of Superabsorbent Polymers Based on Starch Aldehydes and Carboxymethyl Cellulose. Polymers (Basel) 2018; 10:polym10060605. [PMID: 30966639 PMCID: PMC6404157 DOI: 10.3390/polym10060605] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 12/05/2022] Open
Abstract
Superabsorbent polymers (SAPs) are crosslinked hydrophilic polymers that are capable of absorbing large amounts of water. Commercial SAPs are mostly produced with acrylic acid that cannot be easily biodegraded. Therefore, in this study, polysaccharide-based SAPs using carboxymethyl cellulose as a major component were prepared. Starch aldehydes and citric acid were selected due to their environment-friendly, non-toxic, and biodegradable properties compared to conventional crosslinking agents. Starch aldehydes were prepared by periodate oxidation, which forms aldehyde groups by taking the places of C–OH groups at C-2 and C-3. Furthermore, starch aldehydes were analyzed through the change in FT-IR spectra, the aldehyde quantitation, and the morphology in FE-SEM images. In the crosslinking of polysaccharide-based SAPs, the acetal bridges from starch aldehydes led to a large amount of water entering the network structure of the SAPs. However, the ester bridges from citric acid interfered with the water penetration. In addition, the swelling behavior of the SAPs was analyzed by the Fickian diffusion model and the Schott’s pseudo second order kinetics model. The relationship between swelling behavior and morphology of the SAPs was analyzed by FE-SEM images. In conclusion, polysaccharide-based SAPs were well prepared and the highest equilibrium swelling ratio was 87.0 g/g.
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Affiliation(s)
- Jungmin Lee
- Department of Biosystems and Biomaterials Science & Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
| | - Soohee Park
- LOTTE Fine Chemical Co., Ltd., 19, Yeocheon-ro 217 beon-gil, Nam-gu, Ulsan 44714, Korea.
| | - Hyun-Gyoo Roh
- Department of Biosystems and Biomaterials Science & Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
| | - Seungtaek Oh
- HYOSUNG CORPORATION, R&D Business Labs, 74, Simin-daero, Dongan-gu, Anyang-si, Gyeonggi-do 14080, Korea.
| | - Sunghoon Kim
- Department of Biosystems and Biomaterials Science & Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
| | - Myounguk Kim
- Korea Institute of Ceramic Engineering and Technology, Ceramic Fiber & Composite Center, Jinju 52851, Korea.
| | - Donghyun Kim
- Korea Institute of Industrial Technology, Research Institute of Industrial Technology Convergence Human and Culture Convergence R&D Group, 143, Hanggaulro, Sangnok-gu, Ansan-si, Gyeonggi-do 15588, Korea.
| | - Jongshin Park
- Department of Biosystems and Biomaterials Science & Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
- Research Institute for Agriculture and Life Sciences, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
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Hibbins AR, Kumar P, Choonara YE, Kondiah PPD, Marimuthu T, Du Toit LC, Pillay V. Design of a Versatile pH-Responsive Hydrogel for Potential Oral Delivery of Gastric-Sensitive Bioactives. Polymers (Basel) 2017; 9:polym9100474. [PMID: 30965777 PMCID: PMC6418787 DOI: 10.3390/polym9100474] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 09/25/2017] [Accepted: 09/25/2017] [Indexed: 11/30/2022] Open
Abstract
A pH-responsive hydrogel system was prepared by free radical polymerization of acrylamide and methyl acrylic acid in the presence of N-N′-methylene bisacrylamide. Sodium bicarbonate was further applied as a blowing agent, which afforded a porous hydrogel structure. The hydrogel system achieved a constant super swelling rate within simulated intestinal buffer (~4%/min) and remained relatively static within simulated gastric buffer (~0.8%/min). The hydrogel system was able to achieve matrix resilience greater than 30% under a relatively high strain of 40%. In addition, the hydrogel system demonstrated significant swelling properties in response to simulated intestinal environmental over 24 h, with contrasting characteristics in simulated gastric buffer. The hydrogel demonstrated type IV isotherm porosity characteristics, with remarkable MRI and SEM variations in gastric and intestinal simulated fluids. Drug loading was observed to be greater than 98% using theophylline as a prototype drug, evaluating its controlled release kinetics over 24 h. The hydrogel exhibited substantial pH-responsive activity, which could be used as a versatile platform for targeted release of gastric-sensitive therapeutics to the small intestine.
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Affiliation(s)
- Angus R Hibbins
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Pierre P D Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Lisa C Du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
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18
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Liu TG, Wang YT, Guo J, Liu TB, Wang X, Li B. One-step synthesis of corn starch urea based acrylate superabsorbents. J Appl Polym Sci 2017. [DOI: 10.1002/app.45175] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ting Guo Liu
- Provincial-Level Experimental and Teaching Demonstration Center of Chemical Materials & Engineering, College of Chemistry & Materials Engineering; Chizhou University; Anhui Chizhou 247100 People's Republic of China
| | - Yun Tao Wang
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
- School of Food and Biological Engineering; Zhengzhou University of Light Industry; Zhengzhou 450000 People's Republic of China
| | - Jun Guo
- Provincial-Level Experimental and Teaching Demonstration Center of Chemical Materials & Engineering, College of Chemistry & Materials Engineering; Chizhou University; Anhui Chizhou 247100 People's Republic of China
| | - Tian Bao Liu
- Provincial-Level Experimental and Teaching Demonstration Center of Chemical Materials & Engineering, College of Chemistry & Materials Engineering; Chizhou University; Anhui Chizhou 247100 People's Republic of China
| | - Xin Wang
- Provincial-Level Experimental and Teaching Demonstration Center of Chemical Materials & Engineering, College of Chemistry & Materials Engineering; Chizhou University; Anhui Chizhou 247100 People's Republic of China
| | - Bin Li
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
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19
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Crosslinking of poly(vinylpyrrolidone)/acrylic acid with tragacanth gum for hydrogels formation for use in drug delivery applications. Carbohydr Polym 2017; 157:185-195. [DOI: 10.1016/j.carbpol.2016.09.086] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/27/2016] [Accepted: 09/27/2016] [Indexed: 12/21/2022]
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20
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Umar A, Sanagi MM, Salisu A, Wan Ibrahim WA, Abd Karim KJ, Abdul Keyon AS. Preparation and characterization of starch grafted with methacrylamide using ammonium persulphate initiator. MATERIALS LETTERS 2016; 185:173-176. [DOI: 10.1016/j.matlet.2016.08.091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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21
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A novel photo-grafting of acrylamide onto carboxymethyl starch. 1. Utilization of CMS-g-PAAm in easy care finishing of cotton fabrics. Carbohydr Polym 2016; 152:105-118. [DOI: 10.1016/j.carbpol.2016.06.088] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 06/18/2016] [Accepted: 06/21/2016] [Indexed: 11/22/2022]
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22
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Synthesis and characterization of hydrolysed starch-g-poly(methacrylic acid) composite. Int J Biol Macromol 2016; 87:473-80. [DOI: 10.1016/j.ijbiomac.2016.02.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/09/2016] [Accepted: 02/26/2016] [Indexed: 11/22/2022]
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23
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Pu W, Wen C, Liu R, Jin F, Wang C, Liao Z. Evaluation of a novel profile control agent for enhancing an oil-recovery application. J Appl Polym Sci 2016. [DOI: 10.1002/app.43756] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wanfen Pu
- School of Petroleum and Gas Engineering; Southwest Petroleum University; Chengdu 610500 Sichuan China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 Sichuan China
| | - Cailin Wen
- School of Petroleum and Gas Engineering; Southwest Petroleum University; Chengdu 610500 Sichuan China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 Sichuan China
| | - Rui Liu
- School of Petroleum and Gas Engineering; Southwest Petroleum University; Chengdu 610500 Sichuan China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 Sichuan China
| | - Fayang Jin
- School of Petroleum and Gas Engineering; Southwest Petroleum University; Chengdu 610500 Sichuan China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 Sichuan China
| | - Chongyang Wang
- School of Petroleum and Gas Engineering; Southwest Petroleum University; Chengdu 610500 Sichuan China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 Sichuan China
| | - Zhicheng Liao
- Chuanxi Drilling Company, Chuanqing Drilling Engineering Company, Limited, China National Petroleum Corporation; Chengdu 610015 Sichuan China
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24
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Mukerabigwi JF, Lei S, Fan L, Wang H, Luo S, Ma X, Qin J, Huang X, Cao Y. Eco-friendly nano-hybrid superabsorbent composite from hydroxyethyl cellulose and diatomite. RSC Adv 2016. [DOI: 10.1039/c6ra01759b] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A high performance nano-hybrid superabsorbent composite was prepared through the graft polymerization of acrylic acid into hydroxyethyl cellulose backbone chains in the presence of diatomite clay as an inorganic nano-filler.
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Affiliation(s)
- Jean Felix Mukerabigwi
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Shaojun Lei
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Lu Fan
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Haili Wang
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Shiying Luo
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Xiaoya Ma
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Jing Qin
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Xueying Huang
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Yu Cao
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
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25
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New superabsorbent hydrogels synthesized by copolymerization of acrylamide and N-2-hydroxyethyl acrylamide with itaconic acid or itaconates containing ethylene oxide units in the side chain. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0876-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Starch-based hydrogel loading with carbendazim for controlled-release and water absorption. Carbohydr Polym 2015; 125:376-83. [DOI: 10.1016/j.carbpol.2015.03.004] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 03/02/2015] [Accepted: 03/03/2015] [Indexed: 01/24/2023]
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27
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Guo Q, Wang Y, Fan Y, Liu X, Ren S, Wen Y, Shen B. Synthesis and characterization of multi-active site grafting starch copolymer initiated by KMnO4 and HIO4/H2SO4 systems. Carbohydr Polym 2015; 117:247-254. [DOI: 10.1016/j.carbpol.2014.09.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 08/07/2014] [Accepted: 09/05/2014] [Indexed: 11/25/2022]
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28
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Kolya H, Roy A, Tripathy T. Starch-g-Poly-(N, N-dimethyl acrylamide-co-acrylic acid): An efficient Cr (VI) ion binder. Int J Biol Macromol 2015; 72:560-8. [DOI: 10.1016/j.ijbiomac.2014.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 09/05/2014] [Indexed: 11/29/2022]
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29
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Mahalingam S, Ren G, Edirisinghe M. Rheology and pressurised gyration of starch and starch-loaded poly(ethylene oxide). Carbohydr Polym 2014; 114:279-287. [DOI: 10.1016/j.carbpol.2014.08.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 07/04/2014] [Accepted: 08/04/2014] [Indexed: 12/28/2022]
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30
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Qiu H, Qiu Z, Wang J, Zhang R, Zheng F. Enhanced swelling and methylene blue adsorption of polyacrylamide-based superabsorbents using alginate modified montmorillonite. J Appl Polym Sci 2013. [DOI: 10.1002/app.40013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haixia Qiu
- Chemistry Department; School of Science; Tianjin University; Tianjin People's Republic of China
| | - Zhaoxia Qiu
- Jincheng Landscape Research Institute; Jincheng Shanxi People's Republic of China
| | - Jialing Wang
- Chemistry Department; School of Science; Tianjin University; Tianjin People's Republic of China
| | - Ruobing Zhang
- Chemistry Department; School of Science; Tianjin University; Tianjin People's Republic of China
| | - Fuyuan Zheng
- Chemistry Department; School of Science; Tianjin University; Tianjin People's Republic of China
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31
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Song W, Guo Z, Yao Y, Zheng H, Zhao Z. Cross-link copolymerization of cationic starch by gamma irradiation and its swelling-shrinking and flocculating behaviors. STARCH-STARKE 2013. [DOI: 10.1002/star.201300138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Weiqiang Song
- School of Materials Science and Engineering; Henan University of Technology; Zhengzhou P. R. China
| | - Zhengchao Guo
- School of Materials Science and Engineering; Zhengzhou University; Zhengzhou P. R. China
| | - Yiming Yao
- SINO PEC Research Institute of Petroleum Engineering; Beijing P. R. China
| | - Hongjuan Zheng
- School of Materials Science and Engineering; Henan University of Technology; Zhengzhou P. R. China
| | - Zhiwei Zhao
- School of Materials Science and Engineering; Henan University of Technology; Zhengzhou P. R. China
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32
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Sorour M, El-Sayed M, El Moneem NA, Talaat H, Shaalan H, El Marsafy S. Free radical grafting kinetics of acrylamide onto a blend of starch/chitosan/alginate. Carbohydr Polym 2013; 98:460-4. [PMID: 23987368 DOI: 10.1016/j.carbpol.2013.05.067] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 05/22/2013] [Accepted: 05/24/2013] [Indexed: 10/26/2022]
Abstract
Grafting of monomer onto polymer backbone is one of the effective and accessible methods for the chemical modification of polysaccharides. Grafting of acrylamide (AAm) onto polysaccharides blend (PsB) composed of starch, chitosan and alginate has been carried out using potassium persulfate (KPS) as an initiator. The kinetics of the grafting polymerization also has been studied. The grafting parameters have been evaluated by changing the initial concentrations of AAm from 8 to 16 g, PsB from 6 to 14 g and KPS from 0.2 to 1 g. Evidence of grafting has been obtained from FTIR, XRD and TGA. The kinetics of the grafting polymerization also has been studied. The grafting rate equation of the produced hydrogel (PsB-g-AAm) hydrogel has been expressed by: Rg=k[AAm] [PsB](0.5) [KPS](0.5). The grafting rate is a first order dependence to [AAm] initial concentration and square root to [PsB] and [KPS] initial concentrations in the used concentrations range.
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Affiliation(s)
- Mohamed Sorour
- Chemical Engineering and Pilot Plant Department, National Research Center, Cairo, Egypt
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33
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Wang WB, Huang DJ, Kang YR, Wang AQ. One-step in situ fabrication of a granular semi-IPN hydrogel based on chitosan and gelatin for fast and efficient adsorption of Cu2+ ion. Colloids Surf B Biointerfaces 2013; 106:51-9. [DOI: 10.1016/j.colsurfb.2013.01.030] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 01/07/2013] [Accepted: 01/10/2013] [Indexed: 11/16/2022]
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34
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Nakason C, Nakaramontri Y, Kaesaman A, Kangwansukpamonkon W, Kiatkamjornwong S. Synthesis and characterization of water swellable natural rubber vulcanizates. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Homogeneous synthesis of chitin-based acrylate superabsorbents in NaOH/urea solution. Carbohydr Polym 2013; 94:261-71. [DOI: 10.1016/j.carbpol.2013.01.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 01/02/2013] [Accepted: 01/08/2013] [Indexed: 11/23/2022]
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36
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One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0101-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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37
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Sorour MH, El Sayed MM, Abd El Moneem NM, Talaat HA, Shaalan HF, El Marsafy SM. Process and financial considerations pertinent to hydrogel manufacture. STARCH-STARKE 2012. [DOI: 10.1002/star.201200181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Wang Y, Shi X, Wang W, Wang A. Ethanol-assisted dispersion of attapulgite and its effect on improving properties of alginate-based superabsorbent nanocomposite. J Appl Polym Sci 2012. [DOI: 10.1002/app.38786] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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39
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Sorour M, El-Sayed M, Moneem NAE, Talaat HA, Shalaan H, Marsafy SE. Characterization of hydrogel synthesized from natural polysaccharides blend grafted acrylamide using microwave (MW) and ultraviolet (UV) techniques. STARCH-STARKE 2012. [DOI: 10.1002/star.201200108] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Lv X, Song W, Ti Y, Qu L, Zhao Z, Zheng H. Gamma radiation-induced grafting of acrylamide and dimethyl diallyl ammonium chloride onto starch. Carbohydr Polym 2012; 92:388-93. [PMID: 23218310 DOI: 10.1016/j.carbpol.2012.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 09/30/2012] [Accepted: 10/02/2012] [Indexed: 11/28/2022]
Abstract
Corn starch graft copolymers were prepared from acrylamide/dimethyl diallyl ammonium chloride binary monomers (AM/DMDAAC) by a simultaneous radiation grafting method, and were characterized by FTIR and (1)H NMR techniques, weight measurement and titration method. The copolymers with high grafting ratio and high grafting efficiency of binary monomers were achieved at absorbed doses of 2 kGy and 3 kGy using a 6:9.8:4.2 (w/w/w) ratio of starch/AM/DMDAAC, but their cationic degrees were low. Grafting ratio, grafting efficiency and cationic degree of the copolymers increased with increasing AM content in comonomer mixtures and then decreased at 3kGy using a 6:14 ratio of starch:total comonomers, but their cationic degrees generally decreased with increasing AM content. The grafting ratio, the grafting efficiency and the cationic degree of the copolymers increased, but the grafting efficiency of DMDAAC decreased with varying starch/(AM+DMDAAC) ratio from 6:3 to 6:18 at 3 kGy by using a fixed 7:3 ratio of AM:DMDAAC.
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Affiliation(s)
- Xiaohua Lv
- Isotope Institute of Henan Academy of Sciences, Zhengzhou 450015, China
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41
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Yang H, Wang W, Wang A. A pH-Sensitive Biopolymer-Based Superabsorbent Nanocomposite from Sodium Alginate and Attapulgite: Synthesis, Characterization, and Swelling Behaviors. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.599244] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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42
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Zhong K, Zheng XL, Mao XY, Lin ZT, Jiang GB. Sugarcane bagasse derivative-based superabsorbent containing phosphate rock with water-fertilizer integration. Carbohydr Polym 2012; 90:820-6. [PMID: 22840007 DOI: 10.1016/j.carbpol.2012.06.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 06/04/2012] [Accepted: 06/06/2012] [Indexed: 10/28/2022]
Abstract
To improve the water-fertilizer utilization ratio and mitigate the environmental contamination, an eco-friendly superabsorbent polymer (SPA), modified sugarcane bagasse/poly (acrylic acid) embedding phosphate rock (MSB/PAA/PHR), was prepared. Ammonia, phosphate rock (PHR) and KOH were admixed in the presence of acrylic acid to provide nitrogen (N), phosphorus (P) and potassium (K) nutrients, respectively. Impacts on water absorption capacity of the superabsorbent polymer (SAP) were investigated. The maximum swelling capacity in distilled water and 0.9 wt.% (weight percent) NaCl solution reached 414 gg(-1) and 55 gg(-1) (water/prepared SAP), respectively. The available NPK contents of the combination system were 15.13 mgg(-1), 6.93 mgg(-1) and 52.05 mgg(-1), respectively. Moreover, the release behaviors of NPK in the MSB/PAA/PHR were also studied. The results showed that the MSB/PAA/PHR has outstanding sustained-release plant nutrients property.
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Affiliation(s)
- Kang Zhong
- College of Natural Resource and Environment, South China Agricultural University, Guangzhou 510642, China
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43
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Kugler S, Spychaj T, Wilpiszewska K, Gorący K, Lendzion-Bieluń Z. Starch-graft copolymers ofN-vinylformamide and acrylamide modified with montmorillonite manufactured by reactive extrusion. J Appl Polym Sci 2012. [DOI: 10.1002/app.37630] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Zou W, Yu L, Liu X, Chen L, Zhang X, Qiao D, Zhang R. Effects of amylose/amylopectin ratio on starch-based superabsorbent polymers. Carbohydr Polym 2012. [DOI: 10.1016/j.carbpol.2011.09.060] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Parvathy PC, Jyothi AN. Synthesis, characterization and swelling behaviour of superabsorbent polymers from cassava starch-graft-poly(acrylamide). STARCH-STARKE 2011. [DOI: 10.1002/star.201100077] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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