IP Library Granted Patent US 8,597,630
Granted Patent B2
US 8,597,630 · App. 12/748,301 · Granted Dec 3, 2013

Thermal-responsive polymer networks, compositions, and methods and applications related thereto

Inventors: Jie Song (Shrewsbury, MA); Jianwen Xu (Worcester, MA)
Assignee: University of Massachusetts
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Quick Facts
Patent No.
US 8,597,630
App. No.
12/748,301
Granted
Dec 3, 2013
Kind
B2
Abstract

The invention relates to materials comprising polymer network containing siloxanes or organic-based core structures, preferably the materials have thermal-responsive properties. In some embodiments, the invention relates to an organic core functionalized with polymers. In another embodiment, organic core-polymer conjugates comprise polylactone segments. The organic core-polymer conjugates may be crosslinked together to form a material, and these materials may be functionalized with bioactive compounds so that the materials have desirable biocompatibility or bioactivity when used in medical devices. In some embodiments, the invention relates to silsesquioxane groups functionalized with polymers. In another embodiment, silsequioxane-polymer conjugates comprise polylactone segments. The silsequioxane-polymer conjugates may be crosslinked together to form a material, and these materials may be functionalized with bioactive compounds so that the materials have desirable biocompatibility or bioactivity when used in medical devices. In further embodiments, the invention relates to composite materials that contain a polymer matrix and aggregates, and in some embodiments, methods of making, and methods of using these materials. Preferably, the aggregates are calcium phosphate aggregates. Preferably, the material is resistant to fracture. In further embodiments, the materials are used in surgical procedures of bone replacement. In further embodiments, the materials contain polyhedral silsesquioxanes and/or biodegradable segments.

Claims (18)

1. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

2. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

3. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

4. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

5. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

6. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

7. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

8. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

9. A composition comprising a crosslinked network made from molecules of the following formula:

wherein the crosslinkable groups of the polymeric arms shown in the formula are crosslinked to form a network.

Assignments (2)
CONFIRMATORY LICENSE Recorded May 27, 2015
From: UNIVERSITY OF MASSACHUSETTS MEDICAL SCH
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 035782/0932 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2010
From: SONG, JIE; XU, JIANWEN
To: UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Reel/Frame 024180/0371 →
Continuity (3)
Continuation In Part 12450872
Provisional Application 60925329 · Apr 19, 2007
Related Publication 20100280561A1 · Nov 4, 2010