WJPR Citation New

  All Since 2019
 Citation  7475  4312
 h-index  28  21
 i10-index  197  83

Login

Best Paper Awards

World Journal of Pharmaceutical Research (WJPR) will give best paper award in every issue in the form of money along with certificate to promote research activity of scholar.
Best Paper Award :
Dr. Dhrubo Jyoti Sen
Download Article: Click Here

Search

Track Your Article

Abstract

VISCOMETRIC STUDY OF CARBOXYMETHYLATED OLIGOIMIDES.

Dr. S.V.Patel*

Abstract

Various Amino terminated oligoimides were prepared by reported method. Bismaleimide and Diaminediphenylmethane at different molar ratios were carried out. The carboxymethylation of this oligoimides was claimed out by their reaction with monochloro acetic acid. The resultant carboxymethylated oligoimides (CMOIs) were characterized. The viscosity measurement of solutions of all CMOIs was calmed out in DMF at 30o ± 0.3oC. The ubbelohde suspended type viscometer was used for such measurement. The viscosity data of the solution of CMOI signified that the decrease in concentration of solution increases reduced viscosity (ɳred). This suggests the CMOI act as polyelectrolyte of anionic type. Thus the viscosity of the solution in DMF suppressed by adding water and KBr in DMF. Thus the viscosity measurements of solution of CMOI in DMF-Water-KBr (80:20:1%) gives the intrinsic viscosity. Also applying empirical equation is able to represent the viscometric data for all the oligoimides. It may be stated that as the equation is quite empirical.

Keywords: Polyelectrolyte, Oligoimides, Ubbelohde viscometer, reduced viscosity, empirical relation and intrinsic viscosity.


[Full Text Article]  [Download Certificate]

Call for Paper

World Journal of Pharmaceutical Research (WJPR)
Read More

Email & SMS Alert

World Journal of Pharmaceutical Research (WJPR)
Read More

Article Statistics

World Journal of Pharmaceutical Research (WJPR)
Read More

Online Submission

World Journal of Pharmaceutical Research (WJPR)
Read More