Journal
ACS MACRO LETTERS
Volume 5, Issue 6, Pages 688-693Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.6b00327
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Funding
- National Science Foundation [DMR-1410223]
- American Chemical Society Petroleum Research Fund [53225-ND7]
- Eastman Chemical Company
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The design and synthesis of a new class of thermally labile poly(beta-thioester)s is reported. Aliphatic azo linkages were incorporated into the main chain of the polymers to allow for degradation to lower molecular weights upon heating. These polymers displayed a temperature-dependent degradation profile with a significant increase in decomposition rate as the temperature was raised from 60 to 95 degrees C. This approach was further extended to prepare amphiphilic triblock copolymers containing poly(beta-thioester)s and poly(ethylene glycol) (PEG). The resulting block copolymers were capable of self assembly into micelles in water. Moreover, the assembled nanoparticles underwent dissociation as a result of exposure to heat.
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