## Abstract XPS and SIMS have been used to examine the surface composition of copolymers of glycolide (cyclic dimer of glycolic acid) and trimethylene carbonate (TMC) as solventβcast films. XPS results on the polymers agree with bulk composition data. SIMS measurements suggest surface enrichment of
An XPS and SIMS analysis of biodegradable biomedical polyesters
β Scribed by M. C. Davies; R. D. Short; M. A. Khan; J. F. Watts; A. Brown; A. J. Eccles; P. Humphrey; J. C. Vickerman; M. Vert
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 556 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0142-2421
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Plasma treatments typically affect only the outer few nanometers of a polymer surface and produce a complex mixture of surface functionalities. For a given plasma gas, the population of plasma-induced surface functionalities is influenced by several plasma parameters (power, pressure and residence t
## Abstract **Summary:** The enzymatic degradation of typical chemically synthesized biodegradable plastics, such as poly(butylene adipate) and poly(__Ξ΅__βcaprolactone), to a repolymerizable cyclic oligomer under continuous flow using an enzyme column was studied, directed towards green chemical re