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All-acrylic multigraft copolymer superelastomers

Patent ·
OSTI ID:1892910

Thermoplastic elastomer compositions comprising acrylic multigraft copolymers are described. The multigraft copolymers comprise a rubbery polyacrylate backbone and a plurality of randomly spaced glassy polyacrylate side chains. The multigraft copolymers can be prepared using a facile grafting through method that can provide copolymers with enhanced purity. The acrylic multigraft copolymers exhibit microphase separated morphologies and “superelastomeric” properties, including an elongation at break, stress at break, and/or strain recovery behavior that exceeds that of conventional triblock copolymer polyacrylate thermoplastic elastomers.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Assignee:
University of Tennessee Research Foundation (Knoxville, TN)
Patent Number(s):
11,325,991
Application Number:
16/608,614
OSTI ID:
1892910
Country of Publication:
United States
Language:
English

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