P.psyllium-g-polyacrylamide: Synthesis and characterization

Mishra, Anuradha; Rajani, Smita D.; Agarwal, Munna L.; Dubey, Rashmi

doi:10.1007/s00289-002-0056-5

Cited by 30 publications

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“…This behavior is due to the involvement of primary bonding like covalent bonding between Psyllium and acrylic acid during graft copolymerization. 26 …”

Section: X-ray Diffractionmentioning

confidence: 97%

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A study on effect of different reaction conditions on grafting of psyllium and acrylic acid‐based hydrogels

Kumar

Kaith

Mittal

2011

J of Applied Polymer Sci

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In this study, Psyllium and acrylic acid based polymeric networks were synthesized under different reaction conditions such as in-air, in-vacuum, and under the influence of c-radiations using potassium persulphate (KPS)-hexamethylene tetramine (HMTA) as an initiator-crosslinker system. Initially, optimization of varied reaction parameters was performed under all the different reaction conditions. The synthesized networks were then characterized using FTIR spectroscopy, SEM, TGA/DTA, and XRD techniques. It has been found that the percent grafting varies with varying reaction conditions with maximum grafting (138 6 1.15%) reported in case of synthesis carried-out in-vacuum followed by the synthesis in-air (125 6 1.00%) and then in case of synthesis under the influence of c-radiations (124 6 1.15%).

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“…This behavior is due to the involvement of primary bonding like covalent bonding between Psyllium and acrylic acid during graft copolymerization. 26 …”

Section: X-ray Diffractionmentioning

confidence: 97%

“…The counter reading at peak intensity of 21.297 is said to represent the crystalline material and the peak intensities at 34.744 corresponds to the amorphous material in Psyllium. 26 Percentage crystallinity (%Cr) 27 and the crystalline index 28 …”

Section: X-ray Diffraction Studiesmentioning

confidence: 99%

A study on effect of different reaction conditions on grafting of psyllium and acrylic acid‐based hydrogels

Kumar

Kaith

Mittal

2011

J of Applied Polymer Sci

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“…Previously, some work has been done on psyllium and functionalized psyllium has been used as flocculants in purification of water. [16][17][18][19][20] In the present study, Psy-cl-poly(AAm) has been investigated for its swelling behaviour as a function of time, temperature and pH in distilled water. The hydrogel has been studied for its controlled drug (5-ASA) release behaviour at different pH conditions.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Acrylamide and Natural Polysaccharide Based Polymeric Networks in Ph Controlled Release of 5-Amino Salicylic Acid

Kumar

Kaith

Mittal

2010

J. Chil. Chem. Soc.

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In this paper, psyllium (Psy) and acrylamide (AAm) based superabsorbent, synthesized using potassium persulphate (KPS) as an initiator and hexamethylene tetramine (HTMA) as a crosslinker, has been investigated for its swelling behaviour in distilled water as a function of time, temperature and pH. The hydrogel has further been applied for controlled delivery of 5-amino salicylic acid (5-ASA) under different pH conditions at 37 ºC. It has been found to show Fickian type mechanism as the drug release showed diffusion coefficient less than 0.50 for all the pH conditions.The gel characteristic constant has been found to show 6.9 × 10 -2 , 20.61 × 10 -2 and 33.4 × 10 -2 values for pH 4.0, 7.0 and 9.2, respectively. The initial diffusion coefficient has been found to show greater values than late diffusion coefficient confirming greater release at the early stages of the drug release than that in the late stages.

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“…14,15 Graft copolymers of acrylamide (AM) have received much attention because of their immense potential related to gelling and stabilizing agents for soils and muds. 16,17 Biopolymers are sources of natural polymers from which semisynthetic biopolymers can be derived and suited for diverse applications. Natural biopolymers display unique characteristics including biodegradability and biocompatibility, ecofriendliness, productivity, easy availability, and cost reduction, thus making them materials of choice for diverse applications.…”

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confidence: 99%

Comparative Studies on the High Performance Flocculating Agent of Novel Polyacrylamide grafted Oatmeal

2015

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Polyacrylamide grafted oatmeal was synthesized via two techniques, namely microwave assisted using ceric ammonium nitrate along with microwave irradiation and microwave initiated using microwave irradiation alone. The synthesized graft copolymers via both methods were characterized by a number of physicochemical techniques including viscometry, elemental analysis, Fourier Transform Infrared Spectroscopy (FTIR), SEM, TGA, UV DSC and Carbon 13-cross polarization/magic angle spinning solid-state NMR Spectroscopy ( 13 C-CP/MAS SSNMR Spectroscopy) using a parent biopolymer (oatmeal) as reference. Furthermore, flocculation efficiency of synthesized graft copolymers was studied in 0.25 wt% kaolin suspension and in wastewater for attenuation of pollutant load. The studies report the superiority of OAT-g-PAMs synthesized by the microwave-assisted technique than microwave-initiated technique in terms of their higher percentage grafting, intrinsic viscosity, flocculation efficiency and pollution load reduction. The synthesized graft copolymers were compared with PAM and alum for assessing their flocculation behavior in 0.25 wt% kaolin suspension and the results obtained were found encouraging for the treatment of effluents discharged from various industries. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2016, , 21540; View this article online at wileyonlinelibrary.com.

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P.psyllium-g-polyacrylamide: Synthesis and characterization

Cited by 30 publications

References 0 publications

A study on effect of different reaction conditions on grafting of psyllium and acrylic acid‐based hydrogels

A study on effect of different reaction conditions on grafting of psyllium and acrylic acid‐based hydrogels

Utilization of Acrylamide and Natural Polysaccharide Based Polymeric Networks in Ph Controlled Release of 5-Amino Salicylic Acid

Comparative Studies on the High Performance Flocculating Agent of Novel Polyacrylamide grafted Oatmeal

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