辐射诱导的可生物降解聚合物共混物对玉米生长的促进作用

Q2 Materials Science

Polymers from Renewable Resources Pub Date : 2022-02-01 DOI:10.1177/20412479221107486

Afaf A Abdel Hakiem, Yasser K. Abdel Moneam, H. M. Said, Magdy MH Senna

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引用次数: 4

摘要

以增塑淀粉（PLST）、聚乙烯醇、褐藻酸（AG）和壳聚糖（CS）为原料，采用溶液浇铸法制备了一系列聚合物共混物。将不同的共混物暴露于不同剂量的电子束辐照以形成水凝胶。对电子束辐照前后的共混物进行了凝胶分数（%）、溶胀度（%），FTIR光谱分析、热重分析（TGA）、差示扫描量热法（DSC）和流变学测量。作为一种在田间农业中的实际应用，水凝胶被用于玉米植株的生长促进。结果表明，随着PVA在共混物中的比例增加，凝胶分数增加，而由于降解的发生，加入AG或CS会降低凝胶分数。另一方面，在水中的膨胀中发现了相反的结果。玉米植株生长表明，在淀粉（PLST）、聚乙烯醇共混物中存在CS或AG聚合物的情况下，玉米植株高度也有所改善，在用MgSO4改性的共混物的情况下玉米植株高度有更多改善。

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Radiation induced biodegradable polymer blends for growth promotion of corn plants

A series of polymer blends based on plasticized starch (PLST), poly(vinyl alcohol), alginic acid (AG), and chitosan (CS) were prepared by solution casting. The different blends were exposed to electron beam irradiation to different doses to form hydrogels. The blends before and after electron beam irradiation were characterized in terms of gel fraction (%), swelling in water (%), FTIR spectroscopic analysis, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and rheological measurements. As a practical application in the field agriculture, the hydrogels were used as growth promotion of corn plants. The results showed that the gel fraction was increases by increasing the ratio of PVA in the blends and was decreased by the addition of AG or CS due to the occurrence of degradation. On the other hand, opposite results was found in swelling in water. The corn plant growth indicated an improvement in corn plant height in presence of CS or AG polymers in starch (PLST), poly(vinyl alcohol) blends also, more improvement in corn plant heights in case of blends modified with MgSO4.

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来源期刊

Polymers from Renewable Resources Materials Science-Polymers and Plastics

CiteScore

3.50

自引率

0.00%

发文量

期刊介绍： Polymers from Renewable Resources, launched in 2010, publishes leading peer reviewed research that is focused on the development of renewable polymers and their application in the production of industrial, consumer, and medical products. The progressive decline of fossil resources, together with the ongoing increases in oil prices, has initiated an increase in the search for alternatives based on renewable resources for the production of energy. The prevalence of petroleum and carbon based chemistry for the production of organic chemical goods has generated a variety of initiatives aimed at replacing fossil sources with renewable counterparts. In particular, major efforts are being conducted in polymer science and technology to prepare macromolecular materials based on renewable resources. Also gaining momentum is the utilisation of vegetable biomass either by the separation of its components and their development or after suitable chemical modification. This journal is a valuable addition to academic, research and industrial libraries, research institutions dealing with the use of natural resources and materials science and industrial laboratories concerned with polymer science.