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http://hdl.handle.net/2289/4656| Title: | Gelation of aqueous pectin solutions: A dynamic light scattering study |
| Authors: | Narayanan, Janaky Deotare, Vinod W. Bandyopadhyay, Ranjini Sood, A.K. |
| Issue Date: | 2002 |
| Publisher: | Elsevier B.V. |
| Citation: | Journal of Colloid and Interface Science, 2002, Vol.245, p267–273 |
| Abstract: | We report the dynamic light scattering study of the gelation of aqueous solutions of the biopolymer, pectin, induced by the addition of calcium chloride. The time correlation function data are analyzed under the framework of the coupling model. As the solution enters the semidilute regime where gelation sets in, the relaxation process shows a stretched exponential behavior. The stretching exponent decreases and the characteristic time of the stretched exponential diverges as the system evolves to a gel. Aqueous pectin solutions in the presence of 0.1 M NaCl show similar behavior. Thus, the molecular relaxation modes of pectin solutions can be well described by the coupling model. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/4656 |
| ISSN: | 0021-9797 1095-7103 (online) |
| Copyright: | 2002 Elsevier B.V. |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2002_Jou of Colloid and Interface Science_V245_p267.pdf Restricted Access | Restricted Access | 123.48 kB | Adobe PDF | View/Open Request a copy |
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