An effect of surface segregation of polyhedral oligomeric silsesquioxanes on surface physical properties of acrylic hard coating materials

Patcharida Chouwatat; Shiki Nojima; Yuji Higaki; Ken Kojio; Tomoyasu Hirai; Masaya Kotaki; Atsushi Takahara

doi:10.1016/j.polymer.2015.12.037

An effect of surface segregation of polyhedral oligomeric silsesquioxanes on surface physical properties of acrylic hard coating materials

Patcharida Chouwatat, Shiki Nojima, Yuji Higaki, Ken Kojio, Tomoyasu Hirai, Masaya Kotaki, Atsushi Takahara

Department of Applied Molecular Chemistry

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

An effect of surface segregation of polyhedral oligomeric silsesquioxanes (POSS) on surface physical properties was investigated. Hard coating layer with various MA₈POSS loadings was prepared on a bilayer of soft layer and PMMA substrate via a UV curing process. The scratch resistance of the coating layer showed specific properties. When MA₈POSS loadings in the coating layers were less than 10 wt %, the coating layers showed a great performance in scratch resistance. While MA₈POSS loadings were higher than 10 wt %, the surface performance was deteriorated. This is because the outermost surface of the coating layer was covered by MA₈POSS molecules when the MA₈POSS loadings were higher than 10 wt %, resulting in uncompleted curing reaction caused by large steric hindrance of MA₈POSS.

Original language	English
Pages (from-to)	81-88
Number of pages	8
Journal	polymer
Volume	84
DOIs	https://doi.org/10.1016/j.polymer.2015.12.037
Publication status	Published - Feb 10 2016

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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Chouwatat, P., Nojima, S., Higaki, Y., Kojio, K., Hirai, T., Kotaki, M., & Takahara, A. (2016). An effect of surface segregation of polyhedral oligomeric silsesquioxanes on surface physical properties of acrylic hard coating materials. polymer, 84, 81-88. https://doi.org/10.1016/j.polymer.2015.12.037

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abstract = "An effect of surface segregation of polyhedral oligomeric silsesquioxanes (POSS) on surface physical properties was investigated. Hard coating layer with various MA8POSS loadings was prepared on a bilayer of soft layer and PMMA substrate via a UV curing process. The scratch resistance of the coating layer showed specific properties. When MA8POSS loadings in the coating layers were less than 10 wt %, the coating layers showed a great performance in scratch resistance. While MA8POSS loadings were higher than 10 wt %, the surface performance was deteriorated. This is because the outermost surface of the coating layer was covered by MA8POSS molecules when the MA8POSS loadings were higher than 10 wt %, resulting in uncompleted curing reaction caused by large steric hindrance of MA8POSS.",

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AU - Chouwatat, Patcharida

AU - Nojima, Shiki

AU - Higaki, Yuji

AU - Kojio, Ken

AU - Hirai, Tomoyasu

AU - Kotaki, Masaya

AU - Takahara, Atsushi

PY - 2016/2/10

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AB - An effect of surface segregation of polyhedral oligomeric silsesquioxanes (POSS) on surface physical properties was investigated. Hard coating layer with various MA8POSS loadings was prepared on a bilayer of soft layer and PMMA substrate via a UV curing process. The scratch resistance of the coating layer showed specific properties. When MA8POSS loadings in the coating layers were less than 10 wt %, the coating layers showed a great performance in scratch resistance. While MA8POSS loadings were higher than 10 wt %, the surface performance was deteriorated. This is because the outermost surface of the coating layer was covered by MA8POSS molecules when the MA8POSS loadings were higher than 10 wt %, resulting in uncompleted curing reaction caused by large steric hindrance of MA8POSS.

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