| Title: |
Dielectric and viscoelastic properties of some meta‐tetramethyl xylene diisocyanate‐based polyurethanes as a function of sample composition |
| Authors: |
Capps, Rodger N.; Stack, Gary M.; Samuels, Mary Q.; Beumel, Linda L. |
| Source: |
Journal of Applied Polymer Science ; volume 45, issue 7, page 1175-1188 ; ISSN 0021-8995 1097-4628 |
| Publisher Information: |
Wiley |
| Publication Year: |
1992 |
| Collection: |
Wiley Online Library (Open Access Articles via Crossref) |
| Description: |
A series of linear segmented polyurethanes were synthesized, based on soft segments of polycaprolactone having an average number molecular weight of 2100, or hydroxy–terminated polybutadiene having an approximate molecular weight of 2800. Hara segments were made of meta–tetramethyl xylene diisocyanate and diethyl toluene diamine. The dynamic Young's modulus and loss tangent, relative permittivity, and dielectric loss, were found to be significantly affected by soft segment polarity and hard segment content. These results are discussed in terms of polymer morphology, such as degree of phase separation and soft segment phase state. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1002/app.1992.070450706 |
| Availability: |
https://doi.org/10.1002/app.1992.070450706; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fapp.1992.070450706; https://onlinelibrary.wiley.com/doi/pdf/10.1002/app.1992.070450706 |
| Rights: |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
| Accession Number: |
edsbas.216DA99 |
| Database: |
BASE |