Mehta, Sanjay ; Raghuvanshi, R. S. ; Misra, A. ; Ganga, S. ; Talwar, G. P. (1995) Practical aspects of polymerization of D,L-lactide initiated with tetraphenyltin Journal of Applied Polymer Science, 58 (9). pp. 1495-1499. ISSN 0021-8995
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/app.199...
Related URL: http://dx.doi.org/10.1002/app.1995.070580911
Abstract
Melt polymerization conditions for D, L-Lactide initiated with tetraphenyltin were studied with regard to polymer molecular weight. The combined effect of time and temperature on polymer molecular weight and degree of conversion of D, L-Lactide is described. Polymerization at constant initiator concentrations resulted in a narrow scattering of reproducible molecular weight values. The presence of air/moisture and other impurities during the melt polymerization most likely have a deterimental effect on molecular weight. After a short induction period the rather slow polymerization of D, L-Lactide resulted in a maximal molecular weight followed by an almost constant value of molecular weight.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| ID Code: | 50541 |
| Deposited On: | 26 Jul 2011 13:09 |
| Last Modified: | 26 Jul 2011 13:09 |
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