Synthesis and characterization of fluorescent bio-degradable Poly (ε-Caprolactone)

Meenarathi, B.; Chen, Hung-Hsia; Chen, Ping‐Hei; Anbarasan, R.

doi:10.1007/s12588-014-9070-3

Cited by 13 publications

(9 citation statements)

References 26 publications

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“…This is in accordance with our earlier publication. 39 The -CO 2 -CH 2 proton signal appeared at 2.4 ppm. The remaining methylene protons of PCL appeared between 1 and 2 ppm.…”

Section: Characterization Of Fe 3 O 4 /Ar Nanohybrid Systemmentioning

confidence: 98%

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe₃O₄–alizarinred nanocomposites

Meenarathi¹,

Siva²,

Palanikumar³

et al. 2016

Nanocomposites

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Applications of magnetic and fluorescent poly(ε-caprolactone) (PCL) is increased rapidly in the biomedical engineering field as a bioimaging probe. This urged us to do the present work. In the present investigation, the role of Fe 3 O 4-AR dye nanohybrid on the ring opening polymerization (ROP) of CL was studied at different experimental conditions such as variation in [M] and [M/I]. Prior to ROP of CL, the nanohybrid was characterized by various spectral methods like FTIR spectroscopy, UV-visible spectroscopy, fluorescence spectroscopy, VSM and FESEM like analytical techniques. The Fe 3 O 4-AR nanohybrid is used as an initiator for the ROP of CL. After the formation of PCL/Fe 3 O 4-AR nanocomposite again the systems were characterized by FTIR spectroscopy, UV-visible spectroscopy, fluorescence spectroscopy, DSC, VSM and FESEM like methods. The interesting point noted in the present investigation is the size of Fe 3 O 4 nanoparticle was found to be reduced after the nanohybrid and nanocomposite formation. The three functional groups of AR dye were involved in the ROP of CL. The binding constant and number of binding sites were determined.

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“…This is in accordance with our earlier publication. 39 The -CO 2 -CH 2 proton signal appeared at 2.4 ppm. The remaining methylene protons of PCL appeared between 1 and 2 ppm.…”

Section: Characterization Of Fe 3 O 4 /Ar Nanohybrid Systemmentioning

confidence: 98%

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe₃O₄–alizarinred nanocomposites

Meenarathi¹,

Siva²,

Palanikumar³

et al. 2016

Nanocomposites

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“…Recently, the application of PCL is extended to splinting activity . Generally, the PCL is synthesized through ring‐opening polymerization (ROP) of CL in a bulk polymerization method . In order to increase the physical, chemical and bio‐medical applications of PCL, it was copolymerized with other monomers .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, catalytic and splinting activity of nano Ag end capped l‐glutathione bridged amphiphilic diblock copolymer

Jeyapriya¹,

Meenarathi²,

Anbarasan³

2016

J of Applied Polymer Sci

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l‐glutathione, a naturally occurring environmental friendly amino acid, was used as an initiator towards the ring opening polymerization (ROP) of ɛ‐caprolactone (CL) followed by the ROP of tetrahydrofuran (THF). The thiol group of l‐glutathione reduces Ag+ ions and chemically bound to the surface of Ag nanoparticles. The ROP of CL was carried out at 160 °C under nitrogen atmosphere in the presence of stannous octoate(SO) as catalyst whereas the ROP of THF was carried out at 45 °C for 24 h in the presence of phthalic anhydride (PAH) as a comonomer. The synthesized homo, di and nano Ag end capped diblock copolymers were characterized by FTIR, DSC, TGA, FESEM, high resolution transmission electron microscope (HRTEM), EDAX, GPC, nuclear magnetic resonance (NMR), Fluorescence and CD. Further the application of diblock copolymer was tested for splinting activity. The catalytic reduction of 4‐nitrophenol (NP) in the presence of nano Ag end capped diblock copolymer was carried out with the assistance of sodium borohydride as a reducing agent and the apparent rate constant (kapp) was determined and compared with the literature values. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43804.

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“…The aliphatic CH stretching is observed at 3029 cm −1 and 3069 cm −1 . The carbonyl stretching of the AA segment appears at 1706 cm −1 . A broad peak at 1021 cm −1 is responsible for the COC ether linkage of PECH structure.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of magnetic and fluorescent styrene co‐polymer nanofiber

Eunice¹,

Meenarathi²,

Palanikumar³

et al. 2015

J of Applied Polymer Sci

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Fluorescent and magnetic poly(styrene) (PS) based random co-polymer nanofiber was synthesized in a controlled manner via chemical polymerization in three steps. A fluorescent and magnetic nanohybrid {Fe 3 O 4 /Congored (CR)} was separately prepared and chemically grafted onto the epichlorohydrin (ECH) units of the random co-polymer. Characterizations of the above synthesized polymers were done with the help of Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, fluorescence emission spectroscopy, field emission scanning electron microscopy (FESEM), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM) measurement, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and gel permeation chromatography (GPC) like analytical techniques. The FESEM results indicated that after the grafting of nanohybrid onto the random co-polymer backbone, the polymer exhibited a nanofiber like morphology. Due to the surface functionalization and encapsulation reactions, the magnetic moment value of the nanohybrid and its nanocomposites were found to be reduced. Synthesis and characterization of magnetic and fluorescent random co-polymer based nanofiber is the primary target of the present investigation and its application is extended to the catalysis field.

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Synthesis and characterization of fluorescent bio-degradable Poly (ε-Caprolactone)

Cited by 13 publications

References 26 publications

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe₃O₄–alizarinred nanocomposites

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe₃O₄–alizarinred nanocomposites

Synthesis, characterization, catalytic and splinting activity of nano Ag end capped l‐glutathione bridged amphiphilic diblock copolymer

Synthesis and characterization of magnetic and fluorescent styrene co‐polymer nanofiber

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Synthesis and characterization of fluorescent bio-degradable Poly (ε-Caprolactone)

Cited by 13 publications

References 26 publications

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe3O4–alizarinred nanocomposites

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe3O4–alizarinred nanocomposites

Synthesis, characterization, catalytic and splinting activity of nano Ag end capped l‐glutathione bridged amphiphilic diblock copolymer

Synthesis and characterization of magnetic and fluorescent styrene co‐polymer nanofiber

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Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe₃O₄–alizarinred nanocomposites

Synthesis, characterization and drug release activity of poly(ε-caprolactone)/Fe₃O₄–alizarinred nanocomposites