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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Poly(n-butyl Acrylate) Grafted Cross-linked Poly(vinyl Chloride) Beads via Surface-initiated Controlled/'Living' Radical Polymerization and its Adsorption Properties for Organic Solvents
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Poly(n-butyl Acrylate) Grafted Cross-linked Poly(vinyl Chloride) Beads via Surface-initiated Controlled/'Living' Radical Polymerization and its Adsorption Properties for Organic Solvents

机译：聚（丙烯酸正丁酯）通过表面引发的受控/“活性”自由基聚合接枝的交联聚（氯乙烯）珠及其对有机溶剂的吸附性能

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摘要

Poly(n-butyl acrylate) grafted cross-linked poly(vinyl chloride) beads (PBA-PVC) were prepared by the surface-initiated controlled/"living" radical polymerization (SI-CLRP) methodology on cross-linked poly(vinyl chloride) beads that had been surface modified withdiethyldithiocarbamyl groups under UV irradiation. The macroinitiators, diethyldithiocarbamyl surface modified cross-linked poly(vinylchloride) beads (DEDTC-PVC), were prepared by the reaction of the surface C-Cl groups with sodium N,N-diethyl dithiocarbamate.The "grafting from" polymerization exhibited some "living" polymerization characteristics and the percentage of grafting (PG%) increasedlinearly with polymerization time and reached 53.3% after 6 h UV irradiation. The beaded polymer with a poly(n-butyl acrylate) surfaceshell were characterized with Fourier transform infrared (FTIR) and scanning electron microscope (SEM). The absorbencies of the polymerbeads towards organic solvents such as acetone, ethanol, toluene, and chloroform were enhanced markedly after the SI-CLRP of n-butylacrylate.
机译：通过表面引发的受控/“活性”自由基聚合（SI-CLRP）方法，在交联的聚氯乙烯上制备了聚丙烯酸正丁酯接枝的交联聚氯乙烯珠（PBA-PVC）。 ）在紫外线照射下已被二乙基二硫代氨基甲酰基表面改性的珠子。通过表面C-Cl基团与N，N-二乙基二硫代氨基甲酸钠的反应，制备了大分子引发剂二乙基二硫代氨基甲酸酯表面改性的交联聚氯乙烯（DEDTC-PVC）珠。 “活性”聚合特性和接枝率（PG％）随聚合时间线性增加，在紫外线照射6 h后达到53.3％。用傅立叶变换红外光谱仪（FTIR）和扫描电子显微镜（SEM）对具有聚（丙烯酸正丁酯）表面壳的珠状聚合物进行表征。丙烯酸正丁酯的SI-CLRP处理后，聚合物珠粒对有机溶剂（如丙酮，乙醇，甲苯和氯仿）的吸收能力显着提高。

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