Microphase separation and crystallization in binary blends consisting of poly(methyl methacrylate)-block-polystyrene copolymer and poly(vinylidene fluoride)

Seon Kim Ji, Kwang Hee Lee, Mu Jo Seong, Du Yeol Ryu, Kon Kim Jin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Microdomain structures and crystallization behavior of the binary blends consisting of an asymmetric block copolymer and a homopolymer were investigated using small-angle X-ray scattering (SAXS), optical microscope (OM) and differential scanning calorimetry (DSC). Poly(methyl methacrylate)-block- polystyrene block copolymer (PMMA-b-PS) (weight fraction of PMMA = 0.53) was mixed with low molecular weight poly(vinylidene fluoride) (PVDF). As the PVDF concentration was increased, the morphological change from a lamellar to a cylindrical structure occurred. The crystallization of PVDF significantly disturbed the orientation of the pre-existing microdomain structure, resulting in a poorly ordered morphology. In the blends, PVDF exhibited unique crystallization behavior due to the PMMA block which is preferentially miscible to PVDF and the space constraint imposed by the microdomains.

Original languageEnglish
Pages (from-to)509-518
Number of pages10
JournalPolymer (Korea)
Volume28
Issue number6
Publication statusPublished - 2004 Nov 1

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Microphase separation
Crystallization
Polymethyl methacrylates
Polystyrenes
Copolymers
Block copolymers
Polymethyl Methacrylate
Homopolymerization
X ray scattering
Crystal orientation
Differential scanning calorimetry
Microscopes
Molecular weight
polyvinylidene fluoride
polystyrene-block-poly(methyl methacrylate)

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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title = "Microphase separation and crystallization in binary blends consisting of poly(methyl methacrylate)-block-polystyrene copolymer and poly(vinylidene fluoride)",
abstract = "Microdomain structures and crystallization behavior of the binary blends consisting of an asymmetric block copolymer and a homopolymer were investigated using small-angle X-ray scattering (SAXS), optical microscope (OM) and differential scanning calorimetry (DSC). Poly(methyl methacrylate)-block- polystyrene block copolymer (PMMA-b-PS) (weight fraction of PMMA = 0.53) was mixed with low molecular weight poly(vinylidene fluoride) (PVDF). As the PVDF concentration was increased, the morphological change from a lamellar to a cylindrical structure occurred. The crystallization of PVDF significantly disturbed the orientation of the pre-existing microdomain structure, resulting in a poorly ordered morphology. In the blends, PVDF exhibited unique crystallization behavior due to the PMMA block which is preferentially miscible to PVDF and the space constraint imposed by the microdomains.",
author = "Ji, {Seon Kim} and Lee, {Kwang Hee} and Seong, {Mu Jo} and Ryu, {Du Yeol} and Jin, {Kon Kim}",
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Microphase separation and crystallization in binary blends consisting of poly(methyl methacrylate)-block-polystyrene copolymer and poly(vinylidene fluoride). / Ji, Seon Kim; Lee, Kwang Hee; Seong, Mu Jo; Ryu, Du Yeol; Jin, Kon Kim.

In: Polymer (Korea), Vol. 28, No. 6, 01.11.2004, p. 509-518.

Research output: Contribution to journalArticle

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T1 - Microphase separation and crystallization in binary blends consisting of poly(methyl methacrylate)-block-polystyrene copolymer and poly(vinylidene fluoride)

AU - Ji, Seon Kim

AU - Lee, Kwang Hee

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AU - Ryu, Du Yeol

AU - Jin, Kon Kim

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AB - Microdomain structures and crystallization behavior of the binary blends consisting of an asymmetric block copolymer and a homopolymer were investigated using small-angle X-ray scattering (SAXS), optical microscope (OM) and differential scanning calorimetry (DSC). Poly(methyl methacrylate)-block- polystyrene block copolymer (PMMA-b-PS) (weight fraction of PMMA = 0.53) was mixed with low molecular weight poly(vinylidene fluoride) (PVDF). As the PVDF concentration was increased, the morphological change from a lamellar to a cylindrical structure occurred. The crystallization of PVDF significantly disturbed the orientation of the pre-existing microdomain structure, resulting in a poorly ordered morphology. In the blends, PVDF exhibited unique crystallization behavior due to the PMMA block which is preferentially miscible to PVDF and the space constraint imposed by the microdomains.

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