NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.44B [2005] >
IJC-B Vol.44B(07) [July 2005] >

Title: Phenylalanine and isoleucine containing protein-based polymers as new biomaterials: Synthesis and solid state properties
Authors: Baba, A Ramesha
Gowda, D Channe
Sankar, K Udaya
Issue Date: Jul-2005
Publisher: CSIR
IPC CodeInt.Cl.7 C 08 L
Abstract: Protein-based polymers exhibit elasticity and plasticity in accordance with the nature of the repeating sequence. Analogs of parent plastic sequence AVGVP are synthesized, polymerized and characterized in their solid state. The thermal behaviour of these polymers have been studied by differential scanning calorimetry. Phe-containing and Ile-containing polypentapeptides, poly(XVGVP) where X = F (Phe), I (Ile), exhibits both melting and decomposition transitions in contrast to the decomposition alone for parent poly(AVGVP). And also incorporation of FVGVP or IVGVP into AVGVP in equal molar ratios, described as poly[(AVGVP),(XVGVP)] where X = F, I induces the polymer to exhibit both melting and decomposition and shifted the values relatively to higher temperatures due to their thermal stability. Further, the appearance of clear exothermic crystalline transition at 251ºC, before melting at 328ºC, for poly(IVGVP), contributes towards a typical behaviour of thermoplasticity. Secondary structure in trifluoroethanol for all the polymers shows, well behaved -helix as evident from the circular dichroism studies, in association with a significant amount of random structure contributes to extended stability.
Page(s): 1487-1493
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.44B(07) [July 2005]

Files in This Item:

File Description SizeFormat
IJCB 44B(7) 1487-1493.pdf211.15 kBAdobe PDFView/Open
 Current Page Visits: 1106 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 164556 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: