Radiation induced crosslinking of polyacrylamide incorporated low molecular weights natural polymers for possible use in the agricultural applications

Elbarbary, Ahmed M.; El‐Rehim, Hassan A. Abd; El‐Sawy, Naeem M.; Hegazy, El‐Sayed A.; Soliman, E. A.

doi:10.1016/j.carbpol.2017.08.050

Cited by 80 publications

(30 citation statements)

References 65 publications

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“…Furthermore, nanocellulose hydrogels are friendly toward the soil pH as it would not drastically change the pH value of the soil [128]. Due to its capacity to retain a large amount of water, reported as 200 times that of its mass, nanocellulose hydrogels are favored in the agricultural sector [129]. Nanocellulose hydrogels could be used in biomedical applications including drug delivery, wound dressing, bioimaging, and wearable sensors [130].…”

Section: Potential Applications Of Opefb Nanocellulose Hydrogelmentioning

confidence: 99%

Potential of Oil Palm Empty Fruit Bunch Resources in Nanocellulose Hydrogel Production for Versatile Applications: A Review

et al. 2020

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Oil palm empty fruit bunch (OPEFB) is considered the cheapest natural fiber with good properties and exists abundantly in Malaysia. It has great potential as an alternative main raw material to substitute woody plants. On the other hand, the well-known polymeric hydrogel has gathered a lot of interest due to its three-dimensional (3D) cross-linked network with high porosity. However, some issues regarding its performance like poor interfacial connectivity and mechanical strength have been raised, hence nanocellulose has been introduced. In this review, the plantation of oil palm in Malaysia is discussed to show the potential of OPEFB as a nanocellulose material in hydrogel production. Nanocellulose can be categorized into three nano-structured celluloses, which differ in the processing method. The most popular nanocellulose hydrogel processing methods are included in this review. The 3D printing method is taking the lead in current hydrogel production due to its high complexity and the need for hygiene products. Some of the latest advanced applications are discussed to show the high commercialization potential of nanocellulose hydrogel products. The authors also considered the challenges and future direction of nanocellulose hydrogel. OPEFB has met the requirements of the marketplace and product value chains as nanocellulose raw materials in hydrogel applications.

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Section: Potential Applications Of Opefb Nanocellulose Hydrogelmentioning

confidence: 99%

Potential of Oil Palm Empty Fruit Bunch Resources in Nanocellulose Hydrogel Production for Versatile Applications: A Review

et al. 2020

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“…Hydrogels have been widely applied in various fields such as medicines (Khalid, Ahmad, Minhas, & Barkat, 2017;Lam et al, 2016), engineering (Dai et al, 2017;Mohammadi, Sun, Berkland, & Liang, 2017), and agriculture (Bao et al, 2015;Elbarbary, El-Rehim, El-Sawy, Hegazy, & Soliman, 2017), due to their 3D network and unique properties. In agriculture, the hydrogels have been adopted to modify the soil environment and enhance the utilization efficiency of water and fertilizers, which contributes to the growth of crops and alleviates the damage to the environment from the leaching loss of fertilizers (Guilherme et al, 2015;Zhang et al, 2017b).…”

Section: Introductionmentioning

confidence: 99%

Rheokinetics of graft copolymerization of acrylamide in concentrated starch and rheological behaviors and microstructures of reaction products

Bao

Simon

Shen

et al. 2018

Carbohydrate Polymers

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A widely recognized challenge in starch chemistry is to manipulate the graft copolymerization onto starch melt by reactive extrusion (REX). To understand the complex in-situ graft copolymerization in highly concentrated systems, we firstly used a mixer to achieve a homogeneous viscous starch melt, and then undertook dynamic rheological measurements to study the rheokinetics of the reaction. The in-situ synthesis also facilitated the characterization of the microstructures of reaction products. The melt mixture could be regarded to be completely micromixed since the rheokinetics was predominated by the reaction kinetics. The rheological characterization revealed that G'of hydrogels followed a linear progression with the crosslinker concentration. Nevertheless, the reaction temperature and initiator content had little influence on the final microstructure of hydrogels, most likely due to the strong chain transfer reaction in the melt. Additionally, high-amylose starches tended to form grafted hydrogels with a high physical crosslinking density.

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“…Radiation-induced crosslinking was introduced as a technique to prepare superabsorbent hydrogels based on polyacrylamide (PAM), CS, and/or Na-Alg [ 37 ] ( Table 1 , entry 5). The water absorbency of such hydrogels depends on the copolymer composition and radiation dose.…”

Section: Strategies For Fabricating Cs Hydrogels and Their Potentimentioning

confidence: 99%

A Mini-Review on Chitosan-Based Hydrogels with Potential for Sustainable Agricultural Applications

Michalik

Wandzik

2020

Polymers

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Agriculture is an important sector of the economy, but this industry consumes significant amounts of water, which is a precious and limited natural resource. Irrigation techniques and efforts to mitigate water usage influence the growth, survival, and yield of crops. However, superabsorbent polymers in combination with fertilizers can be employed to obtain sustained release of nutrients and improved water retention capacity of the soil. Despite significant recent progress in this area involving synthetic polyacrylate hydrogels, there are no industrially applicable solutions exhibiting similar performance using natural biopolymers or synthetic polymers enriched with natural components. This review focuses on biodegradable chitosan-based hydrogels (both natural and semi-synthetic), and discusses their potential agricultural and horticultural applications. The methods for synthesizing hydrogels via physical or chemical crosslinking, and the resulting functional properties of recently reported hydrogels, such as water retention and release of active ingredients, are presented herein.

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Radiation induced crosslinking of polyacrylamide incorporated low molecular weights natural polymers for possible use in the agricultural applications

Cited by 80 publications

References 65 publications

Potential of Oil Palm Empty Fruit Bunch Resources in Nanocellulose Hydrogel Production for Versatile Applications: A Review

Potential of Oil Palm Empty Fruit Bunch Resources in Nanocellulose Hydrogel Production for Versatile Applications: A Review

Rheokinetics of graft copolymerization of acrylamide in concentrated starch and rheological behaviors and microstructures of reaction products

A Mini-Review on Chitosan-Based Hydrogels with Potential for Sustainable Agricultural Applications

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