A superparamagnetic metallopolymer using tailor-made poly[2-(acetoacetoxy)ethyl methacrylate] bearing pendant β-keto ester functionality. (June 2018)

• Record Type: Journal Article
• Authors: Mandal, Prithwiraj; Banerjee, Sovan Lal; Bhattacharya, Koushik; Singha, Nikhil K.
• Is Part Of: European polymer journal. Volume 103(2018)
• Page Start: 31
• Page End: 39
• Publication Date: 2018-06
• Subjects: ATRP -- Acetoacetate -- Metallopolymer -- Superparamagnetic -- β-keto ester; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; Polymerization; Polymers; Periodicals; Electronic journals; 547.705
• DOI: 10.1016/j.eurpolymj.2018.03.024
• Languages: English
• ISSNs: 0014-3057

Abstract

Graphical abstract: Highlights: 2-(acetoacetoxy)ethyl methacrylate (AEMA) was polymerized via ATRP. 1 H NMR study confirmed the existence of keto-enol tautomerism. PAEMA reacted with cobalt(II) ion to form metal-polymer complex. Thermal and magnetic properties of Co-polymer complex were studied. Abstract: Poly[2-(acetoacetoxy)ethyl methacrylate] (PAEMA), a functional polymer bearing pendant β-keto ester group was prepared via atom transfer radical polymerization (ATRP). The polymers were characterized by 1 H NMR, GPC and DSC analyses. 1 H NMR analysis showed that β-keto ester group present in the side chain of the PAEMA was more in the keto form as compared to the enol form. The reactive pendant β-keto ester group of PAEMA reacted with cobalt(II) ion to form metallopolymer which was characterized by FT-IR, UV–vis, TGA, DSC, FESEM and TEM analyses. This cobalt-polymer complex showed the formation of nanogel, as observed by DLS analysis. Importantly, this cobalt-polymer complex showed superparamagnetic behavior, as observed via superconducting quantum interference device (SQUID) analysis, indicating its potential application in magnetic fluid hyperthermia treatment and radiotherapy.