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; Yeol Ryu Du; Kon Kim Jin

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, Yeol Ryu Du, Kon Kim Jin

Department of Chemical and Biomolecular Engineering

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

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 language	English
Pages (from-to)	509-518
Number of pages	10
Journal	Polymer (Korea)
Volume	28
Issue number	6
Publication status	Published - 2004 Nov

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 Du, {Yeol Ryu} and Jin, {Kon Kim}",

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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

AU - Seong, Mu Jo

AU - Du, Yeol Ryu

AU - Jin, Kon Kim

PY - 2004/11

Y1 - 2004/11

N2 - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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