Tuning of particle indentation by surface modification of polymer particles and substrates

Y. Fukui, K. Yamamoto, T. Yamamoto, K. Fujimoto

Research output: Contribution to journalArticle

Abstract

We studied the influence of the chemical properties of the polymer particle and the polymer substrate on particle indentation. The polymer particles were arrayed over the polymer substrate and heat treatment (annealing) was conducted above the glass transition temperature (Tg) of bulk polymer to indent polymer particles into the polymer substrate. Surface topologies of particle-indented surfaces were observed with a field-emission scanning electron microscope (FE-SEM) and the degree of particle indentation (DI) was evaluated with a scanning probe microscope (SPM). The particle-arrayed substrate was placed upside down and then heat treatment was carried out. It was found that there was no effect of gravity on particle indentation. To prepare polymer particles with different chemical properties, surface grafting of hydrophobic, hydrophilic, cationic and anionic polymer chains was carried out by iniferter-initiated living radical polymerization. We found that the indentation of these particles was influenced by the outermost surface of the particle. Next, to investigate the effect of the substrate surface on particle indentation, sulfonation of the polystyrene (PS) substrate was carried out with concentrated sulfuric acid. We found that the surface property of the substrate also influenced particle indentation. From these results, we concluded that particle indentation would be determined by the interaction between the particle surface and the substrate surface. Finally, we intended to analyze the viscoelastic property of the substrate surface by particle indentation. We could estimate Tg values of PS and polyvinyl chloride (PVC) substrates by observing the particle indentation at the different annealing temperatures.

Original languageEnglish
Article number124380
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume588
DOIs
Publication statusPublished - 2020 Mar 5

Fingerprint

indentation
Indentation
Surface treatment
Polymers
Tuning
tuning
polymers
Substrates
Polystyrenes
Chemical properties
Heat treatment
Annealing
Scanning
Sulfonation
Living polymerization
chemical properties
Free radical polymerization
Sulfuric acid
Polyvinyl Chloride
polystyrene

Keywords

  • Annealing
  • Interfacial interaction
  • Particle indentation
  • Polymer grafting
  • Surface analysis

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Tuning of particle indentation by surface modification of polymer particles and substrates. / Fukui, Y.; Yamamoto, K.; Yamamoto, T.; Fujimoto, K.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 588, 124380, 05.03.2020.

Research output: Contribution to journalArticle

@article{7ffa37cf2e2745e59ee866533f3a16ac,
title = "Tuning of particle indentation by surface modification of polymer particles and substrates",
abstract = "We studied the influence of the chemical properties of the polymer particle and the polymer substrate on particle indentation. The polymer particles were arrayed over the polymer substrate and heat treatment (annealing) was conducted above the glass transition temperature (Tg) of bulk polymer to indent polymer particles into the polymer substrate. Surface topologies of particle-indented surfaces were observed with a field-emission scanning electron microscope (FE-SEM) and the degree of particle indentation (DI) was evaluated with a scanning probe microscope (SPM). The particle-arrayed substrate was placed upside down and then heat treatment was carried out. It was found that there was no effect of gravity on particle indentation. To prepare polymer particles with different chemical properties, surface grafting of hydrophobic, hydrophilic, cationic and anionic polymer chains was carried out by iniferter-initiated living radical polymerization. We found that the indentation of these particles was influenced by the outermost surface of the particle. Next, to investigate the effect of the substrate surface on particle indentation, sulfonation of the polystyrene (PS) substrate was carried out with concentrated sulfuric acid. We found that the surface property of the substrate also influenced particle indentation. From these results, we concluded that particle indentation would be determined by the interaction between the particle surface and the substrate surface. Finally, we intended to analyze the viscoelastic property of the substrate surface by particle indentation. We could estimate Tg values of PS and polyvinyl chloride (PVC) substrates by observing the particle indentation at the different annealing temperatures.",
keywords = "Annealing, Interfacial interaction, Particle indentation, Polymer grafting, Surface analysis",
author = "Y. Fukui and K. Yamamoto and T. Yamamoto and K. Fujimoto",
year = "2020",
month = "3",
day = "5",
doi = "10.1016/j.colsurfa.2019.124380",
language = "English",
volume = "588",
journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
issn = "0927-7757",
publisher = "Elsevier",

}

TY - JOUR

T1 - Tuning of particle indentation by surface modification of polymer particles and substrates

AU - Fukui, Y.

AU - Yamamoto, K.

AU - Yamamoto, T.

AU - Fujimoto, K.

PY - 2020/3/5

Y1 - 2020/3/5

N2 - We studied the influence of the chemical properties of the polymer particle and the polymer substrate on particle indentation. The polymer particles were arrayed over the polymer substrate and heat treatment (annealing) was conducted above the glass transition temperature (Tg) of bulk polymer to indent polymer particles into the polymer substrate. Surface topologies of particle-indented surfaces were observed with a field-emission scanning electron microscope (FE-SEM) and the degree of particle indentation (DI) was evaluated with a scanning probe microscope (SPM). The particle-arrayed substrate was placed upside down and then heat treatment was carried out. It was found that there was no effect of gravity on particle indentation. To prepare polymer particles with different chemical properties, surface grafting of hydrophobic, hydrophilic, cationic and anionic polymer chains was carried out by iniferter-initiated living radical polymerization. We found that the indentation of these particles was influenced by the outermost surface of the particle. Next, to investigate the effect of the substrate surface on particle indentation, sulfonation of the polystyrene (PS) substrate was carried out with concentrated sulfuric acid. We found that the surface property of the substrate also influenced particle indentation. From these results, we concluded that particle indentation would be determined by the interaction between the particle surface and the substrate surface. Finally, we intended to analyze the viscoelastic property of the substrate surface by particle indentation. We could estimate Tg values of PS and polyvinyl chloride (PVC) substrates by observing the particle indentation at the different annealing temperatures.

AB - We studied the influence of the chemical properties of the polymer particle and the polymer substrate on particle indentation. The polymer particles were arrayed over the polymer substrate and heat treatment (annealing) was conducted above the glass transition temperature (Tg) of bulk polymer to indent polymer particles into the polymer substrate. Surface topologies of particle-indented surfaces were observed with a field-emission scanning electron microscope (FE-SEM) and the degree of particle indentation (DI) was evaluated with a scanning probe microscope (SPM). The particle-arrayed substrate was placed upside down and then heat treatment was carried out. It was found that there was no effect of gravity on particle indentation. To prepare polymer particles with different chemical properties, surface grafting of hydrophobic, hydrophilic, cationic and anionic polymer chains was carried out by iniferter-initiated living radical polymerization. We found that the indentation of these particles was influenced by the outermost surface of the particle. Next, to investigate the effect of the substrate surface on particle indentation, sulfonation of the polystyrene (PS) substrate was carried out with concentrated sulfuric acid. We found that the surface property of the substrate also influenced particle indentation. From these results, we concluded that particle indentation would be determined by the interaction between the particle surface and the substrate surface. Finally, we intended to analyze the viscoelastic property of the substrate surface by particle indentation. We could estimate Tg values of PS and polyvinyl chloride (PVC) substrates by observing the particle indentation at the different annealing temperatures.

KW - Annealing

KW - Interfacial interaction

KW - Particle indentation

KW - Polymer grafting

KW - Surface analysis

UR - http://www.scopus.com/inward/record.url?scp=85076698437&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076698437&partnerID=8YFLogxK

U2 - 10.1016/j.colsurfa.2019.124380

DO - 10.1016/j.colsurfa.2019.124380

M3 - Article

AN - SCOPUS:85076698437

VL - 588

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

SN - 0927-7757

M1 - 124380

ER -