from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective of a colloid Having a
rangeof particle sizes
Sorry, no etymologies found.
The Dow Chemical polydisperse polyolefin diblock copolymers achieve the same effects with an order of magnitude lower molecular weight and without solvent processing.
Now, Phillip D. Hustad, Jeffrey D. Weinhold, Gary R. Marchand, Eddy I. Garcia-Meitin, and Patricia L. Roberts at the company's Freeport, Texas, site have modified the technique to make polydisperse polyethylene diblock copolymers with a distribution of block lengths.
The ability to predict the packing of polydisperse particles -- a range of sizes in a single system? has significant impact on these and related technologies.
"Current SWCNT manufacturing techniques can only generate mixtures of nanotubes that are electronically polydisperse, i.e. that contain both metallic and semiconducting tubes," said Nathan Yoder, NanoIntegris's product development manager.
The company has developed a novel centrifugation process for separating commercially produced, electronically polydisperse SWCNTs by electronic type.