Gas transport and optical properties of ABA-type triblock copolymers designed using fluorine-containing polyimide macroinitiators with methyl methacrylate

The 6FDA‐TeMPD/PMMA ABA‐type Triblock copolymer was synthesized by ATRP. This polymer showed high heat resistance, low refractive index, and high gas barrier property. 4,4'‐(Hexafluoroisopropylidene) diphthalic anhydride 2,3,5,6‐tetramethyl‐1,4‐phenylenediamine (6FDA‐TeMPD) polyimide macroiniti...

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Bibliographic Details
Published in:Polymer international 2013-09, Vol.62 (9), p.1377-1385
Main Authors: Sato, Shuichi, Ichikawa, Masato, Ose, Takamasa, Miyata, Sou, Takahashi, Yoichi, Kanehashi, Shinji, Matsumoto, Hironaga, Nagai, Kazukiyo
Format: Article
Language:English
Subjects:
ABA-type Triblock copolymers
Applied sciences
atom-transfer radical polymerization (ATRP)
Barriers
Blends
Block copolymers
Exact sciences and technology
fluorine-containing polyimide
Gas transport
gas transport property
gas transport property
refractive index
Nanostructure
Optical properties
Organic polymers
Physicochemistry of polymers
poly(methyl methacrylate)
Polymerization
Polymethyl methacrylates
Preparation, kinetics, thermodynamics, mechanism and catalysts
Refractive index
Refractivity
Thermal resistance
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Summary:The 6FDA‐TeMPD/PMMA ABA‐type Triblock copolymer was synthesized by ATRP. This polymer showed high heat resistance, low refractive index, and high gas barrier property. 4,4'‐(Hexafluoroisopropylidene) diphthalic anhydride 2,3,5,6‐tetramethyl‐1,4‐phenylenediamine (6FDA‐TeMPD) polyimide macroinitiator was synthesized and reacted with poly(methyl methacrylate) (PMMA) to form an ABA‐type triblock copolymer by atom transfer radical polymerization. The effect of the ABA‐type triblock copolymer structure on solid, thermal, optical and gas transport properties was systematically investigated and compared with the physical blend polymer. The blend polymer was cloudy, whereas the triblock copolymer was colorless and transparent. The PMMA component decomposition temperature for the triblock copolymer slightly shifted to higher temperature, while its gas barrier property was higher than the blend polymer. The refractive index and the gas permeability decreased while maintaining the heat resistance by a high nanoscale distribution of both polymer components. The 6FDA‐TeMPD/PMMA ABA‐type triblock copolymer can be described as a polymer material with high heat resistance, high gas barrier property and low refractive index amongst existing polymers. © 2013 Society of Chemical Industry
ISSN:0959-8103
1097-0126
DOI:10.1002/pi.4433