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Synthesis of Biohybrid Particles by Modification of Chitosan Beads via RAFT Polymerization in Dispersed Media
Macromolecular Reaction Engineering ( IF 1.5 ) Pub Date : 2020-08-02 , DOI: 10.1002/mren.202000029
Xavier Solimando 1, 2 , Pascale Champagne 1 , Michael F. Cunningham 2
Affiliation  

Spherical macroscopic particles (beads) made from chitosan (CTS), a polysaccharide derived from the valorization of food waste, are converted into a biohybrid material by grafting poly(4‐vinylpyridine) (P4VP) using a “grafting from” approach via reversible addition–fragmentation chain‐transfer (RAFT) polymerization. Varying the time of reaction, and therefore the conversion, allows to readily tune the composition (CTS vs synthetic polymer content) and consequently the bead properties. P4VP has specific affinity for certain compounds. Thus, the biohybrid particles are promising candidates for applications related to (waste) water treatment, sensors, or biomedical fields. In this study, the potential use of CTS‐g‐P4VP particle beads for the removal of an emerging contaminant of concern (bisphenol A) from water is demonstrated. It is shown that removal efficiency is enhanced from 25% to 70% by the grafting of P4VP on CTS.

中文翻译:

分散介质中RAFT聚合改性壳聚糖微珠合成生物杂化颗粒

由壳聚糖(CTS)制成的球形宏观颗粒(珠子)是一种从食品废物的增值中衍生出来的多糖,通过“从...移植”方法通过可逆添加来接枝聚(4-乙烯基吡啶)(P4VP),从而将其转变为生物混合材料。 –片段链转移(RAFT)聚合。改变反应时间,并因此改变转化率,可以容易地调节组成(CTS对合成聚合物含量),并因此调节珠的性质。P4VP对某些化合物具有特定的亲和力。因此,生物混合颗粒是与(废水)水处理,传感器或生物医学领域相关的应用的有前途的候选者。在这项研究中,证明了CTS-g-P4VP颗粒珠潜在用于从水中去除新兴污染物(双酚A)的潜力。
更新日期:2020-08-02
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