Reaction-induced phase separation and resulting thermomechanical and surface properties of epoxy resin/poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) blends cured with 4,4-diaminodiphenylsulfone

被引：8

作者：

Parameswaranpillai, Jyotishkumar ^{[1
]}

Sidhardhan, Sisanth Krishnan ^{[1
]}

Jose, Seno ^{[2
]}

Siengchin, Suchart ^{[3
]}

Pionteck, Juergen ^{[4
]}

Magueresse, Anthony ^{[5
]}

Grohens, Yves ^{[5
]}

Hameed, Nishar ^{[6
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Polymer Sci & Rubber Technol, Cochin 682022, Kerala, India

[2] Govt Coll, Kottayam 686013, Kerala, India

[3] King Mongkuts Univ Technol North Bangkok, Dept Mat & Prod Engn, 1518 Pracharaj 1,Wongsawang Rd, Bangkok 10800, Thailand

[4] Leibniz Inst Polymer Res Dresden, Hohe Str 6, D-01069 Dresden, Germany

[5] Univ Bretagne Sud, FRE CNRS 3744, IRDL, F-56100 Lorient, France

[6] Swinburne Univ Technol, Factory Future, Hawthorn, Vic, Australia

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2017年 / 134卷 / 04期

关键词：

glass transition; mechanical properties; microscopy; structure-property relationships; thermal properties; INDUCED MICROPHASE SEPARATION; MECHANICAL-PROPERTIES; TRIBLOCK COPOLYMER; BLOCK-COPOLYMERS; THERMOSET BLENDS; RESIN; SYSTEMS; MORPHOLOGY; NANOSTRUCTURES; MISCIBILITY;

D O I：

10.1002/app.44406

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We investigated the phase separation, cure kinetics and thermomechanical properties of diglycidyl ether of bisphenol-A/4,4-diaminodiphenylsulfone/poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer (TBCP) blends. Fourier transform infrared spectroscopy, differential scanning calorimetry, and atomic force microscopy revealed that the blends exhibited heterogeneous phase morphology in which the TBCP formed dispersed domains in epoxy matrix, due to reaction induced phase separation. A fraction of phase-separated PEO phase underwent partial crystallization whereas another fraction formed interphases between the dispersed domains and epoxy matrix. Moreover, the dispersed PEO chains improved the compatibility and interfacial adhesion between the matrix and domains and, consequently, significantly improved the mechanical properties of epoxy resin. Furthermore, the thermal degradation studies and contact angle measurements disclosed that the dispersed domains were well protected by the epoxy matrix. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44406.

引用

页数：8

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