MODIFICATION OF SODIUM SALT OF PARTIALLY CARBOXYMETHYLATED TAMARIND KERNEL POWDER THROUGH GRAFTING WITH ACRYLONITRILE: SYNTHESIS, CHARACTERIZATION AND SWELLING BEHAVIOR

J.H. Trivedi; J.R. Jivani; K.H. Patel; H.C. Trivedi

doi:10.1007/s10118-013-1366-9

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MODIFICATION OF SODIUM SALT OF PARTIALLY CARBOXYMETHYLATED TAMARIND KERNEL POWDER THROUGH GRAFTING WITH ACRYLONITRILE: SYNTHESIS, CHARACTERIZATION AND SWELLING BEHAVIOR

PAPER | Updated：2023-01-03

- MODIFICATION OF SODIUM SALT OF PARTIALLY CARBOXYMETHYLATED TAMARIND KERNEL POWDER THROUGH GRAFTING WITH ACRYLONITRILE: SYNTHESIS, CHARACTERIZATION AND SWELLING BEHAVIOR
- Chinese Journal of Polymer Science Vol. 31, Issue 12, Pages: 1670-1684(2013)
- Affiliations：
  
  a.P.G. Dept. of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat State, India
  b.Amneal Phamaceuticals, New York, USA
- Author bio：
  
  *J.H. Trivedi, E-mail: drjignesh2575@yahoo.co.in
- Funds：
- DOI：10.1007/s10118-013-1366-9
  CLC：
- Received：04 January 2013，
  
  Revised：2013-03-02，
  
  Accepted：12 March 2013，
  
  Published：2013-12
- Accepted：
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J.H. Trivedi, J.R. Jivani, K.H. Patel, et al. MODIFICATION OF SODIUM SALT OF PARTIALLY CARBOXYMETHYLATED TAMARIND KERNEL POWDER THROUGH GRAFTING WITH ACRYLONITRILE: SYNTHESIS, CHARACTERIZATION AND SWELLING BEHAVIOR[J]. Chinese Journal of Polymer Science, 2013, 31(12): 1670-1684.
DOI：

J.H. Trivedi, J.R. Jivani, K.H. Patel, et al. MODIFICATION OF SODIUM SALT OF PARTIALLY CARBOXYMETHYLATED TAMARIND KERNEL POWDER THROUGH GRAFTING WITH ACRYLONITRILE: SYNTHESIS, CHARACTERIZATION AND SWELLING BEHAVIOR[J]. Chinese Journal of Polymer Science, 2013, 31(12): 1670-1684. DOI： 10.1007/s10118-013-1366-9.

摘要

Abstract

A graft copolymer of polyacrylonitrile (PAN) with sodium salt of partially carboxymethylated tamarind kernel powder (Na-PCMTKP

http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=34325268&type=

http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=34325279&type=

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= 0.15) was synthesized by using ceric ammonium nitrate (CAN) as a redox initiator in an aqueous medium. The optimum reaction conditions for affording maximum percentage of grafting were established by successively varying reaction conditions such as concentrations of nitric acid

CAN

monomer (AN) as well as reaction time

temperature and amount of substrate. The influence of these reaction conditions on the grafting yields was discussed. The kinetic scheme of free radical graft copolymerization was proposed and the experimental results were found to agree very well with the proposed kinetic scheme. The graft copolymer (Na-PCMTKP-g-PAN

percentage of grafting

= 413.76% and percentage of grafting efficiency

= 96.48%) sample synthesized under the established optimized reaction conditions was hydrolyzed by 0.7 mol⋅L

−1

NaOH solution at 90−95 ℃ to yield the superabsorbent hydrogel

H-Na-PCMTKP-

-PAN. The swelling behavior of the hydrogel was studied by carrying out its absorbency measurements in low conductivity water

0.15 mol⋅L

−1

salt (NaCl

CaCl

and AlCl

) solutions and simulated urine (SU) solution at different timings. FTIR

TGA and SEM techniques were used to characterize the products.

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