Ageing properties of polyurethane methacrylate and off-stoichiometry thiol-ene polymers after nitrogen and argon plasma treatment

Tiam Foo Chen, Kim Shyong Siow, Pei Yuen Ng, Mui Hoon Nai, Chwee Teck Lim, Burhanuddin Yeop Majlis

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Proprietary mixture of polyurethane methacrylate (PUMA) and off-stoichiometry thiol-ene (OSTE-80) are evaluated as two possible polymeric substrates to prototype microfluidic biochips. Because of their lack of biocompatibility, PUMA and OSTE-80 are modified by argon (Ar) or nitrogen (N2) plasma treatment to introduce nitrogen moieties that are highly polar and conducive for cell attachment and growth. XPS and water contact angle measurement show that these nitrogen groups are relatively stable in the plasma-treated PUMA and OSTE-80 in spite of the hydrophobic recovery and volatilization of nitrogen moieties during air ageing for 15 days. This stability can be attributed to their high degree crosslinking that is reflected by the increase of elastic modulus of PUMA and OSTE-80 during their air ageing. These results show that Ar and N2 plasma-treated PUMA and OSTE-80 possess the necessary physical and chemical properties to be evaluated further to develop microfluidic biochips for biological applications.

Original languageEnglish
JournalJournal of Applied Polymer Science
DOIs
Publication statusAccepted/In press - 2016

Fingerprint

Polyurethanes
Methacrylates
Argon
Sulfhydryl Compounds
Stoichiometry
Polymers
Nitrogen
Aging of materials
Plasmas
Biochips
Microfluidics
Nitrogen plasma
Angle measurement
Air
Biocompatibility
Vaporization
Crosslinking
Chemical properties
Contact angle
X ray photoelectron spectroscopy

Keywords

  • Ageing
  • Crosslinking
  • Microfluidics
  • Properties and characterization
  • Surfaces and interfaces

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

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title = "Ageing properties of polyurethane methacrylate and off-stoichiometry thiol-ene polymers after nitrogen and argon plasma treatment",
abstract = "Proprietary mixture of polyurethane methacrylate (PUMA) and off-stoichiometry thiol-ene (OSTE-80) are evaluated as two possible polymeric substrates to prototype microfluidic biochips. Because of their lack of biocompatibility, PUMA and OSTE-80 are modified by argon (Ar) or nitrogen (N2) plasma treatment to introduce nitrogen moieties that are highly polar and conducive for cell attachment and growth. XPS and water contact angle measurement show that these nitrogen groups are relatively stable in the plasma-treated PUMA and OSTE-80 in spite of the hydrophobic recovery and volatilization of nitrogen moieties during air ageing for 15 days. This stability can be attributed to their high degree crosslinking that is reflected by the increase of elastic modulus of PUMA and OSTE-80 during their air ageing. These results show that Ar and N2 plasma-treated PUMA and OSTE-80 possess the necessary physical and chemical properties to be evaluated further to develop microfluidic biochips for biological applications.",
keywords = "Ageing, Crosslinking, Microfluidics, Properties and characterization, Surfaces and interfaces",
author = "Chen, {Tiam Foo} and Siow, {Kim Shyong} and Ng, {Pei Yuen} and Nai, {Mui Hoon} and Lim, {Chwee Teck} and {Yeop Majlis}, Burhanuddin",
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AU - Chen, Tiam Foo

AU - Siow, Kim Shyong

AU - Ng, Pei Yuen

AU - Nai, Mui Hoon

AU - Lim, Chwee Teck

AU - Yeop Majlis, Burhanuddin

PY - 2016

Y1 - 2016

N2 - Proprietary mixture of polyurethane methacrylate (PUMA) and off-stoichiometry thiol-ene (OSTE-80) are evaluated as two possible polymeric substrates to prototype microfluidic biochips. Because of their lack of biocompatibility, PUMA and OSTE-80 are modified by argon (Ar) or nitrogen (N2) plasma treatment to introduce nitrogen moieties that are highly polar and conducive for cell attachment and growth. XPS and water contact angle measurement show that these nitrogen groups are relatively stable in the plasma-treated PUMA and OSTE-80 in spite of the hydrophobic recovery and volatilization of nitrogen moieties during air ageing for 15 days. This stability can be attributed to their high degree crosslinking that is reflected by the increase of elastic modulus of PUMA and OSTE-80 during their air ageing. These results show that Ar and N2 plasma-treated PUMA and OSTE-80 possess the necessary physical and chemical properties to be evaluated further to develop microfluidic biochips for biological applications.

AB - Proprietary mixture of polyurethane methacrylate (PUMA) and off-stoichiometry thiol-ene (OSTE-80) are evaluated as two possible polymeric substrates to prototype microfluidic biochips. Because of their lack of biocompatibility, PUMA and OSTE-80 are modified by argon (Ar) or nitrogen (N2) plasma treatment to introduce nitrogen moieties that are highly polar and conducive for cell attachment and growth. XPS and water contact angle measurement show that these nitrogen groups are relatively stable in the plasma-treated PUMA and OSTE-80 in spite of the hydrophobic recovery and volatilization of nitrogen moieties during air ageing for 15 days. This stability can be attributed to their high degree crosslinking that is reflected by the increase of elastic modulus of PUMA and OSTE-80 during their air ageing. These results show that Ar and N2 plasma-treated PUMA and OSTE-80 possess the necessary physical and chemical properties to be evaluated further to develop microfluidic biochips for biological applications.

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KW - Crosslinking

KW - Microfluidics

KW - Properties and characterization

KW - Surfaces and interfaces

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