TY - JOUR
T1 - Compatibilization of epoxidized triblock copolymer on the generation of self-assembled nanostructured epoxies and their surface wettability
AU - Remya, Vasudevan Pillai R.
AU - Jose Varghese, Rajendran
AU - Parani, Sundararajan
AU - Sakho, El Hadji Mamour
AU - Oluwafemi, Oluwatobi S.
AU - Thomas, Sabu
N1 - Publisher Copyright:
© 2020 Wiley Periodicals LLC
PY - 2021/3/10
Y1 - 2021/3/10
N2 - In this work, we have successfully synthesized epoxidized poly(styrene-block-butadiene-block-styrene) with the highest epoxidation degree (55 mol%) for the first time by using metachloroperbenzoic acid method. This highly epoxidized styrene-butadiene-styrene (eSBS) block copolymer exhibited good compatibility with the epoxy (diglycidylether of bisphenol-A)/ eSBS block copolymer- 4,4′-diamino diphenyl methane blend. Transmission electron microscope images showed that the eSBS block copolymer formed spherical nanostructure morphology within the blend due to reaction induced phase separation. The addition of eSBS block copolymer in the system significantly improved the wetting parameters such as hydrophilicity, surface free energy, work of adhesion, spreading coefficient and Girifalco-Good's interaction parameter values, which are discussed in detail. The as-prepared self-assembled nanostructured epoxy system will be useful in highly toughened coating applications such as aircraft, automobile, and flooring industries.
AB - In this work, we have successfully synthesized epoxidized poly(styrene-block-butadiene-block-styrene) with the highest epoxidation degree (55 mol%) for the first time by using metachloroperbenzoic acid method. This highly epoxidized styrene-butadiene-styrene (eSBS) block copolymer exhibited good compatibility with the epoxy (diglycidylether of bisphenol-A)/ eSBS block copolymer- 4,4′-diamino diphenyl methane blend. Transmission electron microscope images showed that the eSBS block copolymer formed spherical nanostructure morphology within the blend due to reaction induced phase separation. The addition of eSBS block copolymer in the system significantly improved the wetting parameters such as hydrophilicity, surface free energy, work of adhesion, spreading coefficient and Girifalco-Good's interaction parameter values, which are discussed in detail. The as-prepared self-assembled nanostructured epoxy system will be useful in highly toughened coating applications such as aircraft, automobile, and flooring industries.
KW - blends
KW - coatings
KW - compatibilization
KW - nanostructured polymers
KW - self-assembly
UR - http://www.scopus.com/inward/record.url?scp=85092033447&partnerID=8YFLogxK
U2 - 10.1002/app.49985
DO - 10.1002/app.49985
M3 - Article
AN - SCOPUS:85092033447
SN - 0021-8995
VL - 138
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 10
M1 - 49985
ER -