Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).
NIST Authors in Bold
|Author(s):||Christopher M. Stafford; Jun Y. Chung; Junghyun Lee;|
|Title:||Characterizing the Mechanical Properties and Degradation of Thin Polymer Membranes|
|Published:||August 28, 2011|
|Abstract:||The elasticity, strength, and toughness of thin polymer membranes are of considerable interest since direct knowledge of these key mechanical properties can provide insight into performance, durability, and underlying degradation mechanisms that occur over a membrane‰s operational lifetime. However, there is a considerable lack of knowledge about these key mechanical properties due to the lack of appropriate measurement tools at the nanometer scale. Hence, research has focused on direct performance measurements aided by chemical and structural analysis, such as spectroscopy and scattering techniques. In this work, we utilize the phenomena of wrinkling and cracking as a tool for measuring the modulus, fracture strength, and onset fracture strain of ultrathin polymer membranes .|
|Conference:||241st ACS National Meeting, Division of Polymeric Materials: Science and Engineering: PMSE Preprints|
|Proceedings:||American Chemical Society Fall 2011 National Meeting & Exposition|
|Dates:||August 28-September 1, 2011|
|Keywords:||wrinkling, cracking, membranes, thin films, mechanical properties, water, reverse osmosis|
|Research Areas:||Characterization, Polymers, Nanomaterials|