Phase segregation of poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers

Hong Chul Moon; Jin Kon Kim

doi:10.1016/j.polymer.2013.07.063

Phase segregation of poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers

Hong Chul Moon, Jin Kon Kim

Department of Chemical Engineering

Pohang University of Science and Technology

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

19 Scopus citations

Abstract

We investigated, via small angle X-ray scattering (SAXS), the ordered-to-disordered transition temperature (T_ODT) of symmetric poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers (P3DDT-b-PMMA) with different molecular weights synthesized by anionic coupling reaction. When the molecular weight of P3DDT-b-PMMA was properly chosen, the T_ODT was observed within experimentally accessible temperature range (higher than the glass transition and melting temperature for PMMA and P3DDT, respectively, but lower than the thermal degradation temperature). We also measured the temperature dependence of Flory-Huggins interaction parameter (χ) between P3DDT and PMMA as χ = 0.1109 + 76.63/T, in which T is the absolute temperature.

Original language	English
Pages (from-to)	5437-5442
Number of pages	6
Journal	Polymer
Volume	54
Issue number	20
DOIs	https://doi.org/10.1016/j.polymer.2013.07.063
State	Published - 6 Sep 2013

Keywords

Ordered-to-disordered transition
Rigid rod-flexible block copolymer
Temperature dependence of interaction parameter

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10.1016/j.polymer.2013.07.063

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title = "Phase segregation of poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers",

abstract = "We investigated, via small angle X-ray scattering (SAXS), the ordered-to-disordered transition temperature (TODT) of symmetric poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers (P3DDT-b-PMMA) with different molecular weights synthesized by anionic coupling reaction. When the molecular weight of P3DDT-b-PMMA was properly chosen, the TODT was observed within experimentally accessible temperature range (higher than the glass transition and melting temperature for PMMA and P3DDT, respectively, but lower than the thermal degradation temperature). We also measured the temperature dependence of Flory-Huggins interaction parameter (χ) between P3DDT and PMMA as χ = 0.1109 + 76.63/T, in which T is the absolute temperature.",

keywords = "Ordered-to-disordered transition, Rigid rod-flexible block copolymer, Temperature dependence of interaction parameter",

author = "Moon, {Hong Chul} and Kim, {Jin Kon}",

year = "2013",

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doi = "10.1016/j.polymer.2013.07.063",

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journal = "Polymer",

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TY - JOUR

T1 - Phase segregation of poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers

AU - Moon, Hong Chul

AU - Kim, Jin Kon

PY - 2013/9/6

Y1 - 2013/9/6

N2 - We investigated, via small angle X-ray scattering (SAXS), the ordered-to-disordered transition temperature (TODT) of symmetric poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers (P3DDT-b-PMMA) with different molecular weights synthesized by anionic coupling reaction. When the molecular weight of P3DDT-b-PMMA was properly chosen, the TODT was observed within experimentally accessible temperature range (higher than the glass transition and melting temperature for PMMA and P3DDT, respectively, but lower than the thermal degradation temperature). We also measured the temperature dependence of Flory-Huggins interaction parameter (χ) between P3DDT and PMMA as χ = 0.1109 + 76.63/T, in which T is the absolute temperature.

AB - We investigated, via small angle X-ray scattering (SAXS), the ordered-to-disordered transition temperature (TODT) of symmetric poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers (P3DDT-b-PMMA) with different molecular weights synthesized by anionic coupling reaction. When the molecular weight of P3DDT-b-PMMA was properly chosen, the TODT was observed within experimentally accessible temperature range (higher than the glass transition and melting temperature for PMMA and P3DDT, respectively, but lower than the thermal degradation temperature). We also measured the temperature dependence of Flory-Huggins interaction parameter (χ) between P3DDT and PMMA as χ = 0.1109 + 76.63/T, in which T is the absolute temperature.

KW - Ordered-to-disordered transition

KW - Rigid rod-flexible block copolymer

KW - Temperature dependence of interaction parameter

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U2 - 10.1016/j.polymer.2013.07.063

DO - 10.1016/j.polymer.2013.07.063

M3 - Article

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JO - Polymer

JF - Polymer

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ER -

Phase segregation of poly(3-dodecylthiophene)-block-poly(methyl methacrylate) copolymers

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Keywords

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