Controlling radiation degradation of aCMCsolution to optimize the swelling of acrylic acid hydrogel as water and fertilizer carriers

Abstract

A copolymer hydrogel consisting of Polyacrylic Acid (PAAc) combined with an irradiated solution of carboxymethyl cellulose (CMC, 1 wt%) was prepared. The focus was on controlling the radiation degradation of CMC by exposing it to different six doses of γ‐irradiation from 0 up to 3 kGy. After the irradiation process, the six CMC solution samples were mixed with 10 vol% of Acrylic Acid (AAc) monomer and re‐irradiated at a dose of 25 kGy to begin the polymerization process. A scanning electron microscope (SEM) was used to image the macroporous structure of the obtained (CMC/PAAc) hydrogel. Moreover, the SEM image confirmed the interpenetrating and semi‐interpenetrating polymer network structure based on the irradiation process. The controlled release of urea is achieved due to the binding between urea and the functional groups of the investigated hydrogel by hydrogen bonds. The growth of common bean plant (Phaseolus vulgaris L.) and chlorophyll contents were increased when soils were treated with (CMC/PAAc) compared with soils with free hydrogel in water‐stress conditions.

Polyethylene oxide–polyacrylic acid–folic acid (PEO‐PAAc) nanogel as a 99mTc targeting receptor for cancer diagnostic imaging

“…AAc was dissolved in deionized water (1% v/v) then was exposed to γ-radiation at 4-kGy irradiation dose to prepare 1% PAAc with molecular weight of 5000. 33,34 2.1.2 | Preparation of PEO-PAAc PEO that was dissolved in deionized water (1% v/v) was used to prepare PEO-PAAc nanogel. Different feed compositions of PEO and PAAc were used for polymerization to prepare PEO-PAAc through γ-radiation technique using γ-rays generated from 60 Co source at dose rate 1.9 kGy/h at room temperature.…”

The energetic and physical concept of gold nanorod-dependent fluorescence in cancer treatment and development of new photonic compounds|review

“…This unique property endows them with the power to interact with and manipulate light in ways previously unattainable, making them a subject of intense scientic exploration and innovation. Nanotechnology technique is a helpful method for different applications 1,2 it can be prepared from template methods, 3 as semi-permeable membrane, 4 blend polymer 5 nanoparticles aims to use as green renewable resources to protect the environment from harmful effects. [6][7][8] 1.1 Pioneering the gold nanotechnological frontier in photothermal therapy…”

Gamma irradiation induced surface modification of (PVC/HDPE)/ZnO nanocomposite for enhancing the oil removal and conductivity using COMSOL multiphysics

“…Gamma irradiation has several advantages over other techniques, including high penetration power, quick processing, uniform-dose distribution, system flexibility, and ability to be used in various environments 20 – 25 . Gamma irradiation is an eco-friendly method and the most productive 26 – 31 . This study also aims to increase the hydrophilicity of (PVC/HDPE) for oil/water separation applications.…”