摘要:
A composition includes a blend of (a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and (b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a); wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex sites. A flexible tubing material further includes the blend. In an embodiment, a method of making the blend material is also provided.
摘要:
A composition includes a blend of (a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and (b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a); wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex sites. A flexible tubing material further includes the blend. In an embodiment, a method of making the blend material is also provided.
摘要:
The present invention provides an implantable medical device coating that has improved stability, a medical device coated with such coating, and a method of increasing the stability of an implantable medical device coating, wherein the coating comprises a stereocomplex f poly(D-lactic acid) and poly(L-lactice acid).
摘要:
A composition includes a) a melt processable polymer including at least one chemical moiety having a partial charge; and b) a nucleating agent having a surface charge that is opposite the partial charge of the chemical moiety of the polymer, wherein the nucleating agent accelerates the rate of crystallization of the melt processable polymer; wherein the nucleating agent has a melting point greater than the melting point of the melt processable polymer. In an embodiment, a method of making the composition is also provided.