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The Diffusion of Polymer Chains with a Surface‐Active End Group
Author(s) -
Liu ChunYuan,
Chung TzuKan
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20011001)22:15<1278::aid-marc1278>3.0.co;2-0
Subject(s) - contact angle , polymer , diffusion , materials science , methacrylate , polymer chemistry , end group , pendant group , composite material , copolymer , thermodynamics , physics
A film of poly(butyl methacrylate) with a surface‐active end group was prepared. The contact angle of the film surface has a higher value as compared with the neat polymer due to the segregation of surface‐active groups. We propose a simple method to obtain the diffusion constant by measuring the contact angle when the film is turned upside‐down and heated.