Skip to main content

Phase morphology of functionalized polyester polyurethanes. Effect of functional group concentration

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

Segmented polyester polyurethanes (PU) were prepared based on polycaprolactone as a soft segment and a hard segment containing isophoronediisocyanate and chain extenders 2,2′‐bis‐(hydroxymethyl) propionic acid and 1,4‐butanediol with different molar ratios. The changes of crystallinity and morphology due to the incorporation of carboxylic functional groups in the hard segment were monitored by wide‐angle X‐ray diffraction, optical microscopy and differential scanning calorimetry. The concentration of functional groups varied from 0 to 0.45 mmol g−1. The phase separation, the degree of crystallinity and the size of spherulites depend on the interactions imposed by functional groups. A critical level of the concentration of functional groups (0.25 mmol g−1) at which the crystallizability reaches its maximum was observed. Copyright © 2005 Society of Chemical Industry
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: crystallinity; functionalization; morphology; phase separation; polyester polyurethanes

Document Type: Research Article

Publication date: 2006-03-01

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more