Zero-birefringence pressure-sensitive adhesives

Hiroto Ito, Satoshi Yanai, Sumihisa Oda, Akihiro Tagaya, Yasuhiro Koike

Research output: Contribution to journalArticle

Abstract

We have developed zero-birefringence pressure-sensitive adhesives (PSAs) that exhibit almost no birefringence at any orientation of polymer chains. To evaluate the birefringence of PSAs quantitatively, we report a novel birefringence-measurement method utilizing zero-zero-birefringence polymers that exhibit no birefringence at any orientation of polymer chains and in elastic deformation. By employing this method, we designed and synthesized poly(butyl acrylate/phenoxyethyl acrylate/ acrylic acid/hydroxyethyl acrylate)=80.0:20.0:1. 5:1.0 (by weight) that contains 1.8 wt% isocyanate-type crosslinker that exhibited almost zero birefringence. Furthermore, we demonstrated that after the accelerated aging test by applying heat, this zero-birefringence PSA almost completely prevented light leakage through crossed polarizers.

Original languageEnglish
Article number022142
JournalAIP Advances
Volume2
Issue number2
DOIs
Publication statusPublished - 2012

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adhesives
birefringence
acrylates
polymers
isocyanates
elastic deformation
acrylic acid
polarizers
leakage
heat

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Zero-birefringence pressure-sensitive adhesives. / Ito, Hiroto; Yanai, Satoshi; Oda, Sumihisa; Tagaya, Akihiro; Koike, Yasuhiro.

In: AIP Advances, Vol. 2, No. 2, 022142, 2012.

Research output: Contribution to journalArticle

Ito, H, Yanai, S, Oda, S, Tagaya, A & Koike, Y 2012, 'Zero-birefringence pressure-sensitive adhesives', AIP Advances, vol. 2, no. 2, 022142. https://doi.org/10.1063/1.4727740
Ito, Hiroto ; Yanai, Satoshi ; Oda, Sumihisa ; Tagaya, Akihiro ; Koike, Yasuhiro. / Zero-birefringence pressure-sensitive adhesives. In: AIP Advances. 2012 ; Vol. 2, No. 2.
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