Amphiphilic polystyrene-graft-poly(N,N-dimethylamino-2-ethyl methacrylate) hydrogels synthesized via room temperature ATRP: Studies on swelling behaviour and dye sorption

Vivek, A.; Dhamodharan, R.

doi:10.1016/j.reactfunctpolym.2008.02.006

Cited by 25 publications

(13 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar findings were also described in the literature. [36,37] The pH-dependent responsiveness of the CRG-g-PDMA copolymer was investigated by swellingdeswelling experiments. These experiments were carried out for the CRG-g-PDMA copolymer with two different graft ratios (69 and 120%), at pH 1.2 and pH 10.…”

Section: Swelling Performance and Kinetics Of Crg-g-pdma Copolymersmentioning

confidence: 99%

“…In the alkaline condition (pH 10), the swelling capacity decreased owing to the deprotonation of tertiary amine groups. [37,38] Because pH 10 value is higher than the pK a of PDMA (8.4), the copolymers were completely deprotonated and uncharged. [39] As a result, the graft copolymers became more hydrophobic.…”

Section: Swelling Performance and Kinetics Of Crg-g-pdma Copolymersmentioning

confidence: 99%

See 1 more Smart Citation

pH/temperature‐responsive poly(dimethylaminoethyl methacrylate) grafted κ‐carrageenan copolymer: Synthesis and physicochemical properties

Geyik

Işıklan

2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

κ‐Carrageenan‐graft‐poly(dimethylaminoethyl methacrylate) (CRG‐g‐PDMA) was synthesized via free‐radical copolymerization under microwave irradiation. 13C‐Nuclear magnetic resonance spectroscopy (13C‐NMR), fourier‐transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) methods were used for characterization of the CRG‐g‐PDMA structure. The effect of reaction variables including the concentrations of the initiator and dimethylaminoethyl methacrylate (DMA) as well as the microwave irradiation time and power on graft ratio and conversion was investigated, and their highest values were obtained to be 179 and 76%, respectively. The lower critical solution temperatures (LCSTs) of the CRG‐g‐PDMA copolymers were determined at various pH conditions, and their value in distilled water was found as 47°C. Besides, the swelling capacity of the copolymers under different pH levels was investigated and it was seen that the swelling capacity of the copolymer increased with the decrease in the pH value of the medium. The CRG‐g‐PDMA copolymer exhibited excellent swelling performance in acidic pH conditions and possessed responsiveness to pH and temperature stimuli.

show abstract

Section: Swelling Performance and Kinetics Of Crg-g-pdma Copolymersmentioning

confidence: 99%

Section: Swelling Performance and Kinetics Of Crg-g-pdma Copolymersmentioning

confidence: 99%

pH/temperature‐responsive poly(dimethylaminoethyl methacrylate) grafted κ‐carrageenan copolymer: Synthesis and physicochemical properties

Geyik

Işıklan

2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Adsorption is the effective and simple method to remove pollutants from wastewater. Several polymers and copolymers such as poly(N-vinylpyrrolidone-co-methacrylic acid), polystyrene-graft-poly(N,N-dimethylamino-2-ethyl methacrylate), aniline-formaldehyde polymer and so on as adsorbents were studied for their ability to remove metals or dyes [1][2][3] . In recent years, many researchers have worked for development of new adsorbents having superior properties such as high adsorption capacity, fast adsorption rate, and mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

New copolymer of acrylamide with allyl methacrylate and its capacity for the removal of azo dyes

Yıldırım

Yılmaz

et al. 2015

Polímeros

View full text Add to dashboard Cite

“…The grafting from method can be easily applied using “controlled”/living radical polymerization techniques 18–21. Previously, our group successfully demonstrated the grafting of methacrylate monomers such as methyl methacrylate, glycidyl methacrylate, benzyl methacrylate, t ‐butyl methacrylate, and styrene and N ‐vinyl carbazole on polystyrene backbone via ATRP process at ambient conditions 22–25. Recently, reversible addition–fragmentation chain transfer (RAFT) polymerization has gained importance over the other methods mainly because of its compatibility with a wide range of functional groups such as acid, amide, amine, and epoxy containing monomers 26–30.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of graft copolymers onto styrenic polymer backbone via “grafting from” raft process

Rajendran

Dhamodharan

2012

J. Polym. Sci. A Polym. Chem.

View full text Add to dashboard Cite

A new synthetic methodology is developed for preparing graft copolymers via RAFT polymerization method by the ''R group approach'' onto styrenic polymers. In this approach, latent sites of the styrenic polymer was brominated first and then converted into macro-RAFT agents with pyrazole and thio dodecyl as the Z groups. This was used to synthesize graft copolymer such as polystyrene-graft-polymethyl methacrylate (PS-g-PMMA), polystyrene-graft-poly(isobornyl acrylate), polystyrene-graft-poly[2-(acetoacetoxy)ethyl methacrylate] (PSg-PAEMA), and poly(para-methoxystyrene)-graft-polystyrene (P(p-MS)-g-PS). The polymers are characterized by gel permeation chromatography, 1 H NMR, IR, and atomic force micros-copy (AFM). The morphology of PS-g-PMMA in THF was investigated using AFM and island-like features were noticed. The AFM studies of the PS-g-PAEMA graft copolymers revealed the formation of globules and ribbon-like morphological features. The PS-g-PAEMA graft copolymers form complex with Fe(III) in dimethylformamide and the AFM studies suggest the formation of globular superstructures. V C 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 50: [4772][4773][4774][4775][4776][4777][4778][4779][4780][4781][4782] 2012

show abstract

Amphiphilic polystyrene-graft-poly(N,N-dimethylamino-2-ethyl methacrylate) hydrogels synthesized via room temperature ATRP: Studies on swelling behaviour and dye sorption

Cited by 25 publications

References 31 publications

pH/temperature‐responsive poly(dimethylaminoethyl methacrylate) grafted κ‐carrageenan copolymer: Synthesis and physicochemical properties

pH/temperature‐responsive poly(dimethylaminoethyl methacrylate) grafted κ‐carrageenan copolymer: Synthesis and physicochemical properties

New copolymer of acrylamide with allyl methacrylate and its capacity for the removal of azo dyes

Synthesis of graft copolymers onto styrenic polymer backbone via “grafting from” raft process

Contact Info

Product

Resources

About