Abstract
Intrinsic viscosity, [η], and interaction constant, k', have been determined for ethyl cellulose 7, 22, and 50 cps in 5 different organic solvent systems in order to select suitable systems for a coating process applicable for a wide range of ethyl cellulose grades of different molecular weight. The results indicate that methylene chloride/ethanol (60:40, % w/w) is an advantageous solvent system for each of the polymer grades studied. The interaction constant shows corresponding values for the different ethyl cellulose grades in each solvent system studied, apparently independent of molecular weight. Thus, k' was found to be more generally applicable than [η] when searching for a solvent system with high-solvent power for ethyl cellulose since [η] is a function of the molecular weight.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
