Crystallization-induced structure fluctuation of crystallized microdomain structure composed of strongly segregated crystalline-crystalline diblock copolymers

Shiki Nojima, Yuji Higaki, Ryohei Ishige, Hirofumi Kabayama, Noboru Ohta, Hiroyasu Masunaga, Tomoyasu Hirai, Ken Kojio, Atsushi Takahara

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

Crystallization-induced structure fluctuations in the layer thickness direction and disordering of pre-crystallized structure in crystallized microdomain structure that consist of a strongly segregated crystalline-crystalline diblock copolymer, poly(ethylene glycol)-block-poly(perfluorooctyl ethyl acrylate) (PEG-b-PFA-C8), were investigated. The structure formation process during isothermal crystallization was monitored by in-situ time-resolved simultaneous SAXS/WAXD measurements and thermal analysis. At early stage of isothermal crystallization, three dimensional growth of the PEG lamellar crystals within lamellar microphase-separated morphology induced the volume shrinkage of PEG phase, resulting in the reduction of PEG layer thickness, increase of PFA-C8 layer thickness and disordering of pre-crystallized PFA-C8 crystals. At late stage of isothermal crystallization, one dimensional growth, thickening of PEG lamellar crystals induced the increase of PEG layer thickness and reduction of PFA-C8 layer thickness. The structure fluctuation in the crystallized microdomain structure depends on the crystal growth dimension.

元の言語英語
ページ(範囲)256-265
ページ数10
ジャーナルpolymer
102
DOI
出版物ステータス出版済み - 10 12 2016

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Crystallization
Polyethylene glycols
Block copolymers
Crystalline materials
Crystals
Crystal growth
Thermoanalysis

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics

これを引用

Crystallization-induced structure fluctuation of crystallized microdomain structure composed of strongly segregated crystalline-crystalline diblock copolymers. / Nojima, Shiki; Higaki, Yuji; Ishige, Ryohei; Kabayama, Hirofumi; Ohta, Noboru; Masunaga, Hiroyasu; Hirai, Tomoyasu; Kojio, Ken; Takahara, Atsushi.

:: polymer, 巻 102, 12.10.2016, p. 256-265.

研究成果: ジャーナルへの寄稿記事

Nojima, Shiki ; Higaki, Yuji ; Ishige, Ryohei ; Kabayama, Hirofumi ; Ohta, Noboru ; Masunaga, Hiroyasu ; Hirai, Tomoyasu ; Kojio, Ken ; Takahara, Atsushi. / Crystallization-induced structure fluctuation of crystallized microdomain structure composed of strongly segregated crystalline-crystalline diblock copolymers. :: polymer. 2016 ; 巻 102. pp. 256-265.
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abstract = "Crystallization-induced structure fluctuations in the layer thickness direction and disordering of pre-crystallized structure in crystallized microdomain structure that consist of a strongly segregated crystalline-crystalline diblock copolymer, poly(ethylene glycol)-block-poly(perfluorooctyl ethyl acrylate) (PEG-b-PFA-C8), were investigated. The structure formation process during isothermal crystallization was monitored by in-situ time-resolved simultaneous SAXS/WAXD measurements and thermal analysis. At early stage of isothermal crystallization, three dimensional growth of the PEG lamellar crystals within lamellar microphase-separated morphology induced the volume shrinkage of PEG phase, resulting in the reduction of PEG layer thickness, increase of PFA-C8 layer thickness and disordering of pre-crystallized PFA-C8 crystals. At late stage of isothermal crystallization, one dimensional growth, thickening of PEG lamellar crystals induced the increase of PEG layer thickness and reduction of PFA-C8 layer thickness. The structure fluctuation in the crystallized microdomain structure depends on the crystal growth dimension.",
author = "Shiki Nojima and Yuji Higaki and Ryohei Ishige and Hirofumi Kabayama and Noboru Ohta and Hiroyasu Masunaga and Tomoyasu Hirai and Ken Kojio and Atsushi Takahara",
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AU - Nojima, Shiki

AU - Higaki, Yuji

AU - Ishige, Ryohei

AU - Kabayama, Hirofumi

AU - Ohta, Noboru

AU - Masunaga, Hiroyasu

AU - Hirai, Tomoyasu

AU - Kojio, Ken

AU - Takahara, Atsushi

PY - 2016/10/12

Y1 - 2016/10/12

N2 - Crystallization-induced structure fluctuations in the layer thickness direction and disordering of pre-crystallized structure in crystallized microdomain structure that consist of a strongly segregated crystalline-crystalline diblock copolymer, poly(ethylene glycol)-block-poly(perfluorooctyl ethyl acrylate) (PEG-b-PFA-C8), were investigated. The structure formation process during isothermal crystallization was monitored by in-situ time-resolved simultaneous SAXS/WAXD measurements and thermal analysis. At early stage of isothermal crystallization, three dimensional growth of the PEG lamellar crystals within lamellar microphase-separated morphology induced the volume shrinkage of PEG phase, resulting in the reduction of PEG layer thickness, increase of PFA-C8 layer thickness and disordering of pre-crystallized PFA-C8 crystals. At late stage of isothermal crystallization, one dimensional growth, thickening of PEG lamellar crystals induced the increase of PEG layer thickness and reduction of PFA-C8 layer thickness. The structure fluctuation in the crystallized microdomain structure depends on the crystal growth dimension.

AB - Crystallization-induced structure fluctuations in the layer thickness direction and disordering of pre-crystallized structure in crystallized microdomain structure that consist of a strongly segregated crystalline-crystalline diblock copolymer, poly(ethylene glycol)-block-poly(perfluorooctyl ethyl acrylate) (PEG-b-PFA-C8), were investigated. The structure formation process during isothermal crystallization was monitored by in-situ time-resolved simultaneous SAXS/WAXD measurements and thermal analysis. At early stage of isothermal crystallization, three dimensional growth of the PEG lamellar crystals within lamellar microphase-separated morphology induced the volume shrinkage of PEG phase, resulting in the reduction of PEG layer thickness, increase of PFA-C8 layer thickness and disordering of pre-crystallized PFA-C8 crystals. At late stage of isothermal crystallization, one dimensional growth, thickening of PEG lamellar crystals induced the increase of PEG layer thickness and reduction of PFA-C8 layer thickness. The structure fluctuation in the crystallized microdomain structure depends on the crystal growth dimension.

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