Buckling Instabilities in Polymer Brush Surfaces via Postpolymerization Modification.
- Resource Type
- Academic Journal
- Authors
- Guo W; School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS 39406.; Reese CM; School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS 39406.; Xiong L; School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS 39406.; Logan PK; School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS 39406.; Thompson BJ; School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS 39406.; Stafford CM; Materials Science and Engineering Division, Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899.; Ievlev AV; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN.; Lokitz BS; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN.; Ovchinnikova OS; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN.; Patton DL; School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS 39406.
- Source
- Publisher: American Chemical Society Country of Publication: United States NLM ID: 0365316 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0024-9297 (Print) Linking ISSN: 00249297 NLM ISO Abbreviation: Macromolecules Subsets: PubMed not MEDLINE
- Subject
- Language
- English
- ISSN
- 0024-9297
We report a simple route to engineer ultrathin polymer brush surfaces with wrinkled morphologies using post-polymerization modification (PPM), where the length scale of the buckled features can be tuned from hundreds of nanometers to one micrometer using PPM reaction time. We show that partial crosslinking of the outer layer of the polymer brush under poor solvent conditions is critical to obtain wrinkled morphologies upon swelling. Characterization of the PPM kinetics and swelling behavior via ellipsometry and the through-thickness composition profile via time-of-flight secondary ion mass spectroscopy (ToF-SIMS) provided keys insight into parameters influencing the buckling behavior.