Grafting of polyester fabrics with methacrylic acid

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2024-07-29 DOI:10.1007/s00289-024-05391-x

Boonsri Kusuktham, Krisda Suchiva, Somchai Udon

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Abstract

Modification of polyester (poly(ethylene terephthalate)) fabric by grafting with poly(methacrylic acid) was studied. The objective was to improve the hydrophilicity of polyester and, hence, its water uptake. The modified polyester fabrics were characterized by gravimetric method, Fourier transform infrared, dynamic mechanical analysis, and scanning electron microscopy. It was found that grafting of methacrylic acid onto polyester fabrics could be effected by radical reaction using benzoyl peroxide as radical initiator. Swelling of polyester fabric with benzyl alcohol was also found to be necessary for grafting to occur. The parameters which affected the modification reaction were initiator concentration, monomer to fabric ratio, reaction temperature, and reaction time. In addition, it was shown that the percentage uptake of moisture of the modified fabric (1–4.6%) increased with increase in the extent of grafting (5–32%). The modified fabric tended to be stiffer than the unmodified fabric, but they could be softened by controlled treatment with aqueous solution of sodium hydroxide. The stability of the modified polyester fabric, however, was found to decrease with increase in the extent of modification (high monomer to fabric ratio) and increasing concentration of sodium hydroxide solution. Thus, careful control of sodium hydroxide treatment process was necessary to prevent deterioration of the modified polyester fabric.

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用甲基丙烯酸接枝聚酯织物

通过接枝聚甲基丙烯酸对聚酯（聚对苯二甲酸乙二酯）织物进行改性的研究。目的是改善聚酯的亲水性，从而提高其吸水性。通过重量法、傅立叶变换红外线、动态机械分析和扫描电子显微镜对改性聚酯织物进行了表征。研究发现，使用过氧化苯甲酰作为自由基引发剂，可通过自由基反应将甲基丙烯酸接枝到聚酯织物上。研究还发现，用苯甲醇使聚酯织物膨胀是发生接枝的必要条件。影响改性反应的参数包括引发剂浓度、单体与织物的比例、反应温度和反应时间。此外，研究还表明，改性织物的吸湿率（1-4.6%）随着接枝程度（5-32%）的增加而增加。改性织物比未改性织物更硬，但可通过控制氢氧化钠水溶液的处理使其软化。不过，改性聚酯织物的稳定性会随着改性程度（高单体与织物比率）的增加和氢氧化钠溶液浓度的增加而降低。因此，必须仔细控制氢氧化钠处理过程，以防止改性聚酯织物变质。

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."