Study on effective parameters on phase separation in segmented polyurethanes

Advancing the chemical engineering fundamentals

Polymer Science & Engineering (T2-12P)

MSc Mahdi Amrollahi
Amirkabir University of Technology
Polymer Engineering
63,Allian Alley, Nabard Street, Pirouzi Ave
Tehran
Islamic Republic of Iran

Dr Gity Mir Mohamad Sadeghi
Amirkabir University of Technology
Polymer Engineering
No 8,12th Street, 200 Dastgah Street, Kashani Blvd.
Tehran
Islamic Republic of Iran

Keywords: Segmented Polyurethane, shape memory, intelligent Adhesion, Tackifier , Tack resistance

Abstract
Segmented polyurethanes are used widely as intelligent polymers. Phase separation in segmented polyurethanes is an important phenomena which affects on shape memory and energy dissipation of polymer as well as other characterstic properties of polyurethanes. Morphology, formation and distribution of microdomains (hard segments and soft segments) are effective parameters on responsing behavior of polyurethane system. In this work segmented polyurethanes based on 4,4 -diphenylmethane diisocyanate (MDI) and 1,4-butanediol (BDO) were synthesized and the effect of various polyols on microphase separation and some properties of synthesized polyurethanes has been studied and correlation between microstructural factors on final behavior of polymer well defined.

See the full pdf manuscript of the abstract.

Presented Tuesday 18, 13:30 to 15:00, in session Polymer Science & Engineering (T2-12P).