Abstract
Ultraviolet degradation of polymers in dilute solutions is simulated. The resulting molecular weight distribution and polydispersity evolutions are calculated for good, theta and poor solvents. Simulations show that, when the effect of shadowing among chain segments is taken into account, chain scission is not completely random. The effect is subtle, but it is observable in poor and theta solvents, especially in the 1/Mn and the d(1/Mn)/dt versus time graphics. Shadowing magnifies the increase in the polydispersity, when a polymer sample with a narrow molecular weight distribution is irradiated.
Original language | English |
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Title of host publication | Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015 |
Publisher | Avestia Publishing |
ISBN (Print) | 9781927877173 |
Publication status | Published - 2015 |
Event | Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015 - Barcelona, Spain Duration: 20 Jul 2015 → 21 Jul 2015 |
Publication series
Name | Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering |
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ISSN (Electronic) | 2369-8136 |
Conference
Conference | Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015 |
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Country/Territory | Spain |
City | Barcelona |
Period | 20/07/15 → 21/07/15 |
Bibliographical note
Publisher Copyright:© Avestia Publishing, 2015.
Keywords
- Kinetics
- Molecular Weight Distribution
- Polymer Degradation
- Simulation
- Ultraviolet Irradiation