3D Printing Amorphous Polysiloxane Terpolymers via Vat Photopolymerization

Justin M. Sirrine; Alisa Zlatanic; Viswanath Meenakshisundaram; Jamie M. Messman; Christopher B. Williams; Petar R. Dvornic; Timothy E. Long

doi:10.1002/macp.201800425

3D Printing Amorphous Polysiloxane Terpolymers via Vat Photopolymerization

Justin M. Sirrine, Alisa Zlatanic, Viswanath Meenakshisundaram, Jamie M. Messman, Christopher B. Williams, Petar R. Dvornic, Timothy E. Long

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Photocuring and vat photopolymerization (VP) additive manufacturing (AM) is reported for two families of fully amorphous poly(dimethyl siloxane) (PDMS) terpolymers containing either diphenylsiloxy (DiPhS) or diethylsiloxy (DiEtS) repeating units. A thiol-functionalized PDMS crosslinker enables rapid crosslinking in air using efficient thiol–ene addition. Differential scanning calorimetry and dynamic mechanical analysis (DMA) confirm the absence of crystallinity for the DiPhS-containing systems, while DMA shows a rubbery plateau extending to greater than 200 °C for the DiEtS-containing system. VP-AM of both photopolymer systems afford well-defined 3D geometries, including high aspect ratio structures, which demonstrate feasibility of these photopolymers for the 3D printing of unique geometric objects that require elastomeric performance to temperatures as low as −120 °C.

Original language	English (US)
Article number	1800425
Journal	Macromolecular Chemistry and Physics
Volume	220
Issue number	4
DOIs	https://doi.org/10.1002/macp.201800425
State	Published - Feb 1 2019
Externally published	Yes

Keywords

3D printing
elastomers
poly(dimethyl siloxane)
siloxane terpolymers
thiol–ene reaction
vat photopolymerization

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/macp.201800425

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title = "3D Printing Amorphous Polysiloxane Terpolymers via Vat Photopolymerization",

abstract = "Photocuring and vat photopolymerization (VP) additive manufacturing (AM) is reported for two families of fully amorphous poly(dimethyl siloxane) (PDMS) terpolymers containing either diphenylsiloxy (DiPhS) or diethylsiloxy (DiEtS) repeating units. A thiol-functionalized PDMS crosslinker enables rapid crosslinking in air using efficient thiol–ene addition. Differential scanning calorimetry and dynamic mechanical analysis (DMA) confirm the absence of crystallinity for the DiPhS-containing systems, while DMA shows a rubbery plateau extending to greater than 200 °C for the DiEtS-containing system. VP-AM of both photopolymer systems afford well-defined 3D geometries, including high aspect ratio structures, which demonstrate feasibility of these photopolymers for the 3D printing of unique geometric objects that require elastomeric performance to temperatures as low as −120 °C.",

keywords = "3D printing, elastomers, poly(dimethyl siloxane), siloxane terpolymers, thiol–ene reaction, vat photopolymerization",

author = "Sirrine, {Justin M.} and Alisa Zlatanic and Viswanath Meenakshisundaram and Messman, {Jamie M.} and Williams, {Christopher B.} and Dvornic, {Petar R.} and Long, {Timothy E.}",

note = "Funding Information: The authors graciously acknowledge funding from the Department of Energy{\textquoteright}s (DOE) Kansas City National Security Campus, which is operated and managed by Honeywell Federal Manufacturing & Technologies, LLC, under Contract DE-NA-0002839. Funding Information: The authors graciously acknowledge funding from the Department of Energy's (DOE) Kansas City National Security Campus, which is operated and managed by Honeywell Federal Manufacturing & Technologies, LLC, under Contract DE-NA-0002839. Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Messman, Jamie M.

AU - Williams, Christopher B.

AU - Dvornic, Petar R.

AU - Long, Timothy E.

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PY - 2019/2/1

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N2 - Photocuring and vat photopolymerization (VP) additive manufacturing (AM) is reported for two families of fully amorphous poly(dimethyl siloxane) (PDMS) terpolymers containing either diphenylsiloxy (DiPhS) or diethylsiloxy (DiEtS) repeating units. A thiol-functionalized PDMS crosslinker enables rapid crosslinking in air using efficient thiol–ene addition. Differential scanning calorimetry and dynamic mechanical analysis (DMA) confirm the absence of crystallinity for the DiPhS-containing systems, while DMA shows a rubbery plateau extending to greater than 200 °C for the DiEtS-containing system. VP-AM of both photopolymer systems afford well-defined 3D geometries, including high aspect ratio structures, which demonstrate feasibility of these photopolymers for the 3D printing of unique geometric objects that require elastomeric performance to temperatures as low as −120 °C.

AB - Photocuring and vat photopolymerization (VP) additive manufacturing (AM) is reported for two families of fully amorphous poly(dimethyl siloxane) (PDMS) terpolymers containing either diphenylsiloxy (DiPhS) or diethylsiloxy (DiEtS) repeating units. A thiol-functionalized PDMS crosslinker enables rapid crosslinking in air using efficient thiol–ene addition. Differential scanning calorimetry and dynamic mechanical analysis (DMA) confirm the absence of crystallinity for the DiPhS-containing systems, while DMA shows a rubbery plateau extending to greater than 200 °C for the DiEtS-containing system. VP-AM of both photopolymer systems afford well-defined 3D geometries, including high aspect ratio structures, which demonstrate feasibility of these photopolymers for the 3D printing of unique geometric objects that require elastomeric performance to temperatures as low as −120 °C.

KW - 3D printing

KW - elastomers

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KW - siloxane terpolymers

KW - thiol–ene reaction

KW - vat photopolymerization

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3D Printing Amorphous Polysiloxane Terpolymers via Vat Photopolymerization

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Keywords

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