Thermally degradable polymeric fibers

Jason F Patrick; Hefei Dong; Jeffrey S Moore; Scott R White; Aaron Esser-Kahn; Piyush R Thakre; Nancy R Sottos

Thermally degradable polymeric fibers

Jason F Patrick (Inventor), Hefei Dong (Inventor), Jeffrey S Moore (Inventor), Scott R White (Inventor), Aaron Esser-Kahn (Inventor), Piyush R Thakre (Inventor), Nancy R Sottos (Inventor)

Research output: Patent

Abstract

A microvascular system includes a solid polymeric matrix and a woven structure in the matrix. The woven structure includes a plurality of fibers, and a plurality of microfluidic channels, where at least a portion of the microfluidic channels are interconnected. The microvascular system may be made by forming a composite that includes a solid polymeric matrix and a plurality of sacrificial fibers in the matrix, heating the composite to a temperature of from 100 to 250° C., maintaining the composite at a temperature of from 100 to 250° C. for a time sufficient to form degradants from the sacrificial fibers, and removing the degradants from the composite. The sacrificial fibers may include a polymeric fiber matrix including a poly(hydroxyalkanoate) and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the fiber matrix, where the concentration of the metal in the fiber matrix is at least 0.1 wt '.

Original language	English (US)
U.S. patent number	10865306
State	Published - Dec 15 2020

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title = "Thermally degradable polymeric fibers",

abstract = "A microvascular system includes a solid polymeric matrix and a woven structure in the matrix. The woven structure includes a plurality of fibers, and a plurality of microfluidic channels, where at least a portion of the microfluidic channels are interconnected. The microvascular system may be made by forming a composite that includes a solid polymeric matrix and a plurality of sacrificial fibers in the matrix, heating the composite to a temperature of from 100 to 250° C., maintaining the composite at a temperature of from 100 to 250° C. for a time sufficient to form degradants from the sacrificial fibers, and removing the degradants from the composite. The sacrificial fibers may include a polymeric fiber matrix including a poly(hydroxyalkanoate) and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the fiber matrix, where the concentration of the metal in the fiber matrix is at least 0.1 wt '.",

author = "Patrick, {Jason F} and Hefei Dong and Moore, {Jeffrey S} and White, {Scott R} and Aaron Esser-Kahn and Thakre, {Piyush R} and Sottos, {Nancy R}",

note = "FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under contract number(s) FA9550-05-1-0346, FA9550-09-1-0686, FA9550-10-1-0255 and 2008ST-061-ED002, awarded by the Air Force Office of Research and the OFA/Department of Homeland Security. The government has certain rights in the invention. ; 10865306",

year = "2020",

month = dec,

day = "15",

language = "English (US)",

type = "Patent",

}

TY - PAT

T1 - Thermally degradable polymeric fibers

AU - Patrick, Jason F

AU - Dong, Hefei

AU - Moore, Jeffrey S

AU - White, Scott R

AU - Esser-Kahn, Aaron

AU - Thakre, Piyush R

AU - Sottos, Nancy R

N1 - FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under contract number(s) FA9550-05-1-0346, FA9550-09-1-0686, FA9550-10-1-0255 and 2008ST-061-ED002, awarded by the Air Force Office of Research and the OFA/Department of Homeland Security. The government has certain rights in the invention.

PY - 2020/12/15

Y1 - 2020/12/15

N2 - A microvascular system includes a solid polymeric matrix and a woven structure in the matrix. The woven structure includes a plurality of fibers, and a plurality of microfluidic channels, where at least a portion of the microfluidic channels are interconnected. The microvascular system may be made by forming a composite that includes a solid polymeric matrix and a plurality of sacrificial fibers in the matrix, heating the composite to a temperature of from 100 to 250° C., maintaining the composite at a temperature of from 100 to 250° C. for a time sufficient to form degradants from the sacrificial fibers, and removing the degradants from the composite. The sacrificial fibers may include a polymeric fiber matrix including a poly(hydroxyalkanoate) and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the fiber matrix, where the concentration of the metal in the fiber matrix is at least 0.1 wt '.

AB - A microvascular system includes a solid polymeric matrix and a woven structure in the matrix. The woven structure includes a plurality of fibers, and a plurality of microfluidic channels, where at least a portion of the microfluidic channels are interconnected. The microvascular system may be made by forming a composite that includes a solid polymeric matrix and a plurality of sacrificial fibers in the matrix, heating the composite to a temperature of from 100 to 250° C., maintaining the composite at a temperature of from 100 to 250° C. for a time sufficient to form degradants from the sacrificial fibers, and removing the degradants from the composite. The sacrificial fibers may include a polymeric fiber matrix including a poly(hydroxyalkanoate) and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the fiber matrix, where the concentration of the metal in the fiber matrix is at least 0.1 wt '.

M3 - Patent

M1 - 10865306

ER -

Thermally degradable polymeric fibers

Abstract

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