Wrinkle structures formed by formulating UV-crosslinkable liquid prepolymers

Seung Koo Park; Young Je Kwark; Saekwang Nam; Suntak Park; Bongje Park; Sungryul Yun; Jaehyun Moon; Jeong Ik Lee; Byounggon Yu; Ki Uk Kyung

doi:10.1016/j.polymer.2016.07.031

Wrinkle structures formed by formulating UV-crosslinkable liquid prepolymers

Seung Koo Park, Young Je Kwark, Saekwang Nam, Suntak Park, Bongje Park, Sungryul Yun, Jaehyun Moon, Jeong Ik Lee, Byounggon Yu, Ki Uk Kyung

Department of Data Science

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

13 Scopus citations

Abstract

Artificial wrinkles have recently been in the spotlight due to their potential use in high-tech applications. A spontaneously wrinkled film can be fabricated from UV-crosslinkable liquid prepolymers. Here, we controlled the wrinkle formation by simply formulating two UV-crosslinkable liquid prepolymers, tetraethylene glycol bis(4-ethenyl-2,3,5,6-tetrafluorophenyl) ether (TEGDSt) and tetraethylene glycol diacrylate (TEGDA). The wrinkles were formed from the TEGDSt/TEGDA formulated prepolymer layers containing up to 30 wt% of TEGDA. The wrinkle formation depended upon the rate of photo-crosslinking reaction of the formulated prepolymers. The first order apparent rate constant, k_app, was between ca. 5.7 × 10⁻³ and 12.2 × 10⁻³ s⁻¹ for the wrinkle formation. The wrinkle structures were modulated within the k_app mainly due to variation in the extent of shrinkage of the formulated prepolymer layers with the content of TEGDA.

Original language	English
Pages (from-to)	447-452
Number of pages	6
Journal	Polymer
Volume	99
DOIs	https://doi.org/10.1016/j.polymer.2016.07.031
State	Published - 2 Sep 2016

Keywords

Formulation
Photopolymerization kinetics
UV-crosslinkable liquid prepolymers
Wrinkle formation

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10.1016/j.polymer.2016.07.031

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title = "Wrinkle structures formed by formulating UV-crosslinkable liquid prepolymers",

abstract = "Artificial wrinkles have recently been in the spotlight due to their potential use in high-tech applications. A spontaneously wrinkled film can be fabricated from UV-crosslinkable liquid prepolymers. Here, we controlled the wrinkle formation by simply formulating two UV-crosslinkable liquid prepolymers, tetraethylene glycol bis(4-ethenyl-2,3,5,6-tetrafluorophenyl) ether (TEGDSt) and tetraethylene glycol diacrylate (TEGDA). The wrinkles were formed from the TEGDSt/TEGDA formulated prepolymer layers containing up to 30 wt% of TEGDA. The wrinkle formation depended upon the rate of photo-crosslinking reaction of the formulated prepolymers. The first order apparent rate constant, kapp, was between ca. 5.7 × 10−3 and 12.2 × 10−3 s−1 for the wrinkle formation. The wrinkle structures were modulated within the kapp mainly due to variation in the extent of shrinkage of the formulated prepolymer layers with the content of TEGDA.",

keywords = "Formulation, Photopolymerization kinetics, UV-crosslinkable liquid prepolymers, Wrinkle formation",

author = "Park, {Seung Koo} and Kwark, {Young Je} and Saekwang Nam and Suntak Park and Bongje Park and Sungryul Yun and Jaehyun Moon and Lee, {Jeong Ik} and Byounggon Yu and Kyung, {Ki Uk}",

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doi = "10.1016/j.polymer.2016.07.031",

language = "English",

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AU - Park, Seung Koo

AU - Kwark, Young Je

AU - Nam, Saekwang

AU - Park, Suntak

AU - Park, Bongje

AU - Yun, Sungryul

AU - Moon, Jaehyun

AU - Lee, Jeong Ik

AU - Yu, Byounggon

AU - Kyung, Ki Uk

PY - 2016/9/2

Y1 - 2016/9/2

N2 - Artificial wrinkles have recently been in the spotlight due to their potential use in high-tech applications. A spontaneously wrinkled film can be fabricated from UV-crosslinkable liquid prepolymers. Here, we controlled the wrinkle formation by simply formulating two UV-crosslinkable liquid prepolymers, tetraethylene glycol bis(4-ethenyl-2,3,5,6-tetrafluorophenyl) ether (TEGDSt) and tetraethylene glycol diacrylate (TEGDA). The wrinkles were formed from the TEGDSt/TEGDA formulated prepolymer layers containing up to 30 wt% of TEGDA. The wrinkle formation depended upon the rate of photo-crosslinking reaction of the formulated prepolymers. The first order apparent rate constant, kapp, was between ca. 5.7 × 10−3 and 12.2 × 10−3 s−1 for the wrinkle formation. The wrinkle structures were modulated within the kapp mainly due to variation in the extent of shrinkage of the formulated prepolymer layers with the content of TEGDA.

AB - Artificial wrinkles have recently been in the spotlight due to their potential use in high-tech applications. A spontaneously wrinkled film can be fabricated from UV-crosslinkable liquid prepolymers. Here, we controlled the wrinkle formation by simply formulating two UV-crosslinkable liquid prepolymers, tetraethylene glycol bis(4-ethenyl-2,3,5,6-tetrafluorophenyl) ether (TEGDSt) and tetraethylene glycol diacrylate (TEGDA). The wrinkles were formed from the TEGDSt/TEGDA formulated prepolymer layers containing up to 30 wt% of TEGDA. The wrinkle formation depended upon the rate of photo-crosslinking reaction of the formulated prepolymers. The first order apparent rate constant, kapp, was between ca. 5.7 × 10−3 and 12.2 × 10−3 s−1 for the wrinkle formation. The wrinkle structures were modulated within the kapp mainly due to variation in the extent of shrinkage of the formulated prepolymer layers with the content of TEGDA.

KW - Formulation

KW - Photopolymerization kinetics

KW - UV-crosslinkable liquid prepolymers

KW - Wrinkle formation

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U2 - 10.1016/j.polymer.2016.07.031

DO - 10.1016/j.polymer.2016.07.031

M3 - Article

AN - SCOPUS:84979279211

SN - 0032-3861

VL - 99

SP - 447

EP - 452

JO - Polymer

JF - Polymer

ER -

Wrinkle structures formed by formulating UV-crosslinkable liquid prepolymers

Abstract

Keywords

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