ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Siloxane-urea copolymers were synthesized from MDI and α, ω-bis(aminopropyl)polydimethylsiloxane of different molecular weights by solution polymerization, using 2-ethoxyethyl ether as the solvent. Chain extenders were also employed in some reactions. Formation of urea linkages were followed by FTIR spectroscopy. The products were characterized by GPC chromatography and intrinsic viscosity measurements. Thermal (DSC) and thermomechanical (TMA) characterization of the products were also carried out. The results indicate the formation of novel, strong multiphase elastomeric siloxane-urea copolymers.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00262932
