Synthesis and Characterization of Itaconic Anhydride and Stearyl Methacrylate Copolymers
The free-radical copolymerization and the properties of comb-like copolymers derived from renewable resources, itaconic anhydride (ITA) and stearyl methacrylate (SM), are described. The ITA-SM copolymers were nearly random with a slight alternating tendency. The copolymers exhibited a nanophase-separated morphology, with the stearate side-chains forming a bilayer, semi-crystalline structure. The melting point (Tm) of the side-chains and the crystallinity decreased with increasing ITA concentration. The crystalline side-chains suppressed molecular motion of the main chain, so that a glass transition temperature (Tg) was not resolved unless the ITA concentration was sufficiently high so that Tg > Tm. The softening point and modulus of the copolymers increased with the increasing ITA concentration, but the thermal stability decreased.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
- Sponsoring Organization:
- Doe - Office Of Science
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 980597
- Report Number(s):
- BNL-93515-2010-JA; POLMAG; TRN: US201015%%1982
- Journal Information:
- Polymer, Vol. 50; ISSN 0032-3861
- Country of Publication:
- United States
- Language:
- English
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