Gels with a shape memory
First Claim
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1. A physically cross-linked copolymer formed from monomers comprising:
- a) N-isopropyl acrylamide (NIPAAM);
b) a hydrogen bonding monomer comprising N-acryloyl hydroxysuccinimide (NASI); and
c) styrene in a relative molar ratio of about;
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Abstract
A physically cross-linked copolymer comprising hydrophobic monomers, hydrogen bonding monomers, and thermosensitive monomers, said thermosensitive monomers having a distinct phase change at its lower critical solution temperature (LCST) when existing as a homopolymer. The physically cross-linked copolymer is used for drug delivery system or for enzyme delivery system. The physically cross-linked copolymer is also used for casting shapes of cavities, for production of miniaturized, detailed micro-parts or micro-machine parts, or for production of thermal switches.
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Citations
16 Claims
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1. A physically cross-linked copolymer formed from monomers comprising:
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a) N-isopropyl acrylamide (NIPAAM);
b) a hydrogen bonding monomer comprising N-acryloyl hydroxysuccinimide (NASI); and
c) styrene in a relative molar ratio of about; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16)
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9. A physically cross-linked copolymer formed from monomers comprising:
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a) N-isopropyl acrylamide (NIPAAM);
b) a hydrogen bonding monomer comprising 2-hydroxyethyl methacrylate (HEMA); and
c) styrene in a relative molar ratio of about;
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Specification