The purpose of this paper is to present basic principles of mechanical and chemical
stabilities of polymers, factors contributing to high mechanical and chemical stabilities. Moreover, the paper presents the experimental approaches to assess the mechanical and
chemical stabilities based on the understanding of the principles governing the stabilities. This paper discusses many factors contributing to the mechanical and chemical stability of polymeric
membranes, including:
chemical composition, including structure of monomers and the ways by which the
monomers make up the chains;
molecular architecture, referring molecular structure "at large", including average
molecular weight (AMW) and its distribution, branching, crosslinking, etc.;
chain orientation with respect to the direction of major stress;
morphology of polymers: crystalline vs. amorphous polymers;
structure and geometry of membranes; the pattern and intensity of hydraulic and chemical cleaning schemes; and,
the presence of catalysts and inhibitors for chemical reactions relevant to chemical
degradation of polymeric membranes. Includes 12 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 370 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 18 |
| Published : | 11/01/2007 |
