Synthesis and characterization of temperature-responsive block copolymers using macromonomeric initiator

Göktaş, Melahat

doi:10.1007/s11696-020-01074-9

Cited by 11 publications

(2 citation statements)

References 38 publications

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“…This happened most probably due to the non-polar properties of n-hexane that makes the immersion of the product in n-hexane needs to be longer before decantation to allow the monomers to be more soluble in n-hexane. Previous work from Göktaş in 2020 reported similar results of the existence of the vinyl peak from the DMAEMA monomer when the purification was performed using methanol as the precipitation medium [22].…”

Section: Synthesis and Characterization Of Pnipam-b-pdmaema Block Cop...mentioning

confidence: 54%

Thermo- and pH-Responsive Behavior of Poly(<i>N</i>-isopropylacrylamide)-Block-Poly[(2-dimethylamino)ethyl Methacrylate]

Nizardo,

Fadhilah,

Anggraningrum

2023

Indones. J. Chem.

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The influence of poly(2-dimethylamino)ethyl methacrylate (PDMAEMA) block on the thermo- and pH-responsive behavior of poly(N-isopropyl acrylamide)-block-poly[(2-dimethylamino)ethyl methacrylate)] (PNIPAM-b-PDMAEMA) was studied. The block copolymers were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization by varying the chain length of the second block (PDMAEMA). 1H-NMR and FTIR spectra confirmed the formation of block copolymers PNIPAM21-b-PDMAEMA2 and PNIPAM21-b-PDMAEMA7 with the corresponding molar masses from the GPC data. Thermo- and pH-responsive behavior of block copolymers was investigated in phosphate buffer with various pHs. Interesting results showed that the hydrophilic carboxyl end group and the hydrophobic dodecyl end group of the RAFT agent affected the resulting phase transition temperature (Tc), while the Tc was found to be low in the acidic environment. Moreover, larger particle sizes of PNIPAM21‑b‑PDMAEMA2 were found with a pH of 9. It is noteworthy, that the resulted block copolymers might have the potential use in a drug delivery system.

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Section: Synthesis and Characterization Of Pnipam-b-pdmaema Block Cop...mentioning

confidence: 54%

Thermo- and pH-Responsive Behavior of Poly(<i>N</i>-isopropylacrylamide)-Block-Poly[(2-dimethylamino)ethyl Methacrylate]

Nizardo,

Fadhilah,

Anggraningrum

2023

Indones. J. Chem.

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“…This indicates that it can minimize possible side reactions. Ce(IV) or permanganate combined with a hydroxyl or carboxyl group-containing reductant are more commonly used initiators (Çakmak, 1993;Hazer et al, 1992;Çakmak, 1995;Öztürk & Çakmak, 2007;Göktaş, 2019a;Göktaş, 2020;Göktaş & Deng, 2018). A block copolymer is a chemically bonded end-to-end form of two or more polymer chains.…”

Section: Introductionmentioning

confidence: 99%

Redoks Polimerizasyonu ile Epoksi Reçine İçeren Poli(GMA-b-EG) Blok Kopolimerinin Sentezi ve Karakterizasyonu

GÖKTAŞ,

AYKAÇ

2023

Kafkas Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, poly(glycidyl methacrylate-block-ethylene glycol) [P(GMA-b-EG)] epoxy-based copolymer was synthesized and evaluated by redox polymerization. For this purpose, poly(GMA-b-EG) block copolymer containing epoxy-resin was synthesized by redox polymerization of glycidyl methacrylate using polyethylene glycol (PEG-3000) macroinitiator in the presence of cerium ammonium nitrate [Ce(NH4)2(NO3)6] catalyst. The synthesized epoxy-based copolymer was characterized by FTIR, 1H-NMR, DSC, TGA, and SEM spectroscopic methods. The molecular weight of the epoxy-based copolymer was also determined by GPC. The epoxy-based copolymer has a relatively narrow molecular weight and distribution. The DSC result showed that the glass transition temperature value of the epoxy-based copolymer was 28 oC, different from that of the homopolymer. SEM analysis showed that the surface morphology of PEG and epoxy-based copolymers was different. It has been proven by TGA analysis that the epoxy-based copolymer has two different decomposition temperatures of 160 °C and 400 °C.

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Synthesis and characterization of block copolymer: thermal and morphological properties of SiO2-filled block copolymer nanocomposites

2022

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Synthesis and characterization of temperature-responsive block copolymers using macromonomeric initiator

Cited by 11 publications

References 38 publications

Thermo- and pH-Responsive Behavior of Poly(<i>N</i>-isopropylacrylamide)-Block-Poly[(2-dimethylamino)ethyl Methacrylate]

Thermo- and pH-Responsive Behavior of Poly(<i>N</i>-isopropylacrylamide)-Block-Poly[(2-dimethylamino)ethyl Methacrylate]

Redoks Polimerizasyonu ile Epoksi Reçine İçeren Poli(GMA-b-EG) Blok Kopolimerinin Sentezi ve Karakterizasyonu

Synthesis and characterization of block copolymer: thermal and morphological properties of SiO2-filled block copolymer nanocomposites

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