Gradient copolymers - a new class of materials
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
In this work preparation of a new class of copolymers, namely gradient copolymers via controlled Atom Transfer Radical Polymerization (ATRP) is described. Due to the compositional gradient along the chain, gradient copolymers are expected to exhibit unique physical characteristics as compared to block and random copolymers with similar composition and molecular weight. These include unusual phase separation behavior, and mechanical and thermal properties. Using ATRP one can prepare gradient copolymers via two routes. The first one is the one-pot copolymerization of monomers with different reactitvity ratios r{sub 1}{much_gt}r{sub 2}. The second one is a copolymerization while continuously changing the comonomers feed composition.
- OSTI ID:
- 370864
- Report Number(s):
- CONF-960376-; TRN: 96:003805-0926
- Resource Relation:
- Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
- Country of Publication:
- United States
- Language:
- English
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