شماره ركورد كنفرانس :
4518
عنوان مقاله :
The Evaluation of Psedue-Semi Interpenetrating Polyurethane network From FTIR and Swelling Test data based on polybutadiene-ol/polypropyleneoxide mixture
Author/Authors :
M Amrollahi Department of Polymer Engineering & Color Technology - Amirkabir University of Technology , G Mir Mohamad Sadeghi Department of Polymer Engineering & Color Technology - Amirkabir University of Technology
كليدواژه :
Synthesis , Polyurethane Elastomer , Psedue-Semi IPN , FTIR , Swelling Test
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
Polyurethane elastomer networks were designed and synthesized based on hydroxyl terminated
polybutadiene/polypropyleneoxide (HTPB/PPO) mixtures, 2,4-toluene diisocyanate and 1,4-
butanediol. Various networks with different molar ratio of HTPB to PPO (0/100, 25/75, 50/50,
75/25 and 100/0) had been prepared. DPS and HI factors caculated from FTIR spectrums. These
factors show that chemical networks can increase hydrogen bonding and phase separation in
polyurethane networks based on non-polar or semi polar soft segments. Moreover Flory–Hugins
interaction parameters of soft and hard segments were calculated. Swelling tests were carried out
with different solvents. Time-dependent and Equlibrium swelling test were studied with good and
bad solvent for hard and soft segment.
Synthesized polyurethane elastomer networks have a structure similar to semi interpenetrating
polymer networks, which is named pseudo-semi-IPN.