Effect of low surface energy chain ends on the glass transition temperature of polymer thin films

Fengchao Xie; Tianbai He; H. F. Zhang; Fuk Kay Lee; Binyang Du; Ophelia K.C. Tsui; Y. Yokoe; K. Tanaka; A. Takahara; T. Kajiyama

doi:10.1021/ma011689a

Effect of low surface energy chain ends on the glass transition temperature of polymer thin films

Fengchao Xie, Tianbai He, H. F. Zhang, Fuk Kay Lee, Binyang Du, Ophelia K.C. Tsui, Y. Yokoe, K. Tanaka, A. Takahara, T. Kajiyama

Research output: Contribution to journal › Article

64 Citations (Scopus)

Abstract

The T_g of thin films of PS with sec-butyl-initiated proton terminations and those with the lower energy fluoroalkylsilyl termination was measured. In comparison, the latter exhibit a drastically higher reduction in the T_g with decreasing film thickness. The result evidences the first time that a surface layer sufficiently plasticized by segregated chain ends may have a global effect on the T_g of a polymer film.

Original language	English
Pages (from-to)	1491-1492
Number of pages	2
Journal	Macromolecules
Volume	35
Issue number	5
DOIs	https://doi.org/10.1021/ma011689a
Publication status	Published - Feb 26 2002

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All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

Cite this

Xie, F., He, T., Zhang, H. F., Lee, F. K., Du, B., Tsui, O. K. C., ... Kajiyama, T. (2002). Effect of low surface energy chain ends on the glass transition temperature of polymer thin films. Macromolecules, 35(5), 1491-1492. https://doi.org/10.1021/ma011689a

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AU - Xie, Fengchao

AU - He, Tianbai

AU - Zhang, H. F.

AU - Lee, Fuk Kay

AU - Du, Binyang

AU - Tsui, Ophelia K.C.

AU - Yokoe, Y.

AU - Tanaka, K.

AU - Takahara, A.

AU - Kajiyama, T.

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N2 - The Tg of thin films of PS with sec-butyl-initiated proton terminations and those with the lower energy fluoroalkylsilyl termination was measured. In comparison, the latter exhibit a drastically higher reduction in the Tg with decreasing film thickness. The result evidences the first time that a surface layer sufficiently plasticized by segregated chain ends may have a global effect on the Tg of a polymer film.

AB - The Tg of thin films of PS with sec-butyl-initiated proton terminations and those with the lower energy fluoroalkylsilyl termination was measured. In comparison, the latter exhibit a drastically higher reduction in the Tg with decreasing film thickness. The result evidences the first time that a surface layer sufficiently plasticized by segregated chain ends may have a global effect on the Tg of a polymer film.

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Access to Document

10.1021/ma011689a