Influence of α-methyl group on molecular aggregation structure and surface physicochemical properties of fluoroalkyl side chain polymers

K. Honda, H. Yamaguchi, O. Sakata, S. Sasaki, M. Takata, M. Morita, A. Takahara

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Influence of α-methyl group on molecular aggregation states and surface physicochemical properties of poly(fluoroalkyl acrylate)s [PFA-C y, where y is fluoromethylene number in Rf group] and poly(fluoroalkykl methacrylate)s [PFMA-Cy] thin films were systematically investigated. Spin-coated PFA-Cy and PFMA-C y thin films were characterized by dynamic contact angle measurements and grazing-incidence wide-angle X-ray diffraction (GIWAXD) measurements. GIWAXD data revealed that fluoroalkyl side chains of PFA-Cy and PFMA-Cy with y≥8 formed regular structures in the surface region as well as bulk one. However, the degree of orientation and ordering of the Rf groups of PFMA-C8 thin films was low. Also, the receding contact angle (θr) of PFMA-C8 thin films was lower than that of PFA-C8 ones. By annealing treatment, the θr of PFMA-C8 was increased. These results suggest that the Rf groups of PFMA-C8 were disordered due to presence of the α-methyl group. The Rf groups became ordered to pack closely each other by annealing treatment, so that the water repellency was increased.

Original languageEnglish
Article number012007
JournalJournal of Physics: Conference Series
Volume184
DOIs
Publication statusPublished - Jan 1 2009

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surface properties
molecular structure
polymers
thin films
grazing incidence
annealing
acrylates
diffraction
x rays
water

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Influence of α-methyl group on molecular aggregation structure and surface physicochemical properties of fluoroalkyl side chain polymers. / Honda, K.; Yamaguchi, H.; Sakata, O.; Sasaki, S.; Takata, M.; Morita, M.; Takahara, A.

In: Journal of Physics: Conference Series, Vol. 184, 012007, 01.01.2009.

Research output: Contribution to journalArticle

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