6533b827fe1ef96bd128597d

RESEARCH PRODUCT

Dynamic mechanical properties of semi-interpenetrating networks based on poly(styrene-co-maleic anhydride): 3. Poly(2,6-dimethyl-1,4-phenylene ether)-cross-poly(styrene-co-maleic anhydride)

Joachim RöschLiane Lucy De Lucca FreitasReimund Stadler

subject

Materials sciencePolymers and PlasticsMaleic anhydrideDynamic mechanical analysisStyrenechemistry.chemical_compoundCrystallinityColloid and Surface ChemistrychemistryPhenyleneDiaminePolymer chemistryMaterials ChemistryCopolymerPhysical and Theoretical ChemistryGlass transition

description

Semi-IPN's based on linear poly(2,6-dimethyl-1,4-phenylene ether) (PPE) and diamine crosslinked poly(styrene-co-maleic anhydride) (PScoMA) copolymers containing small amounts of maleic anhydride (PSA=4.7wt.-% MA, PSB=5.8 wt-% MA) are studied with respect to the influence of cross-linking on the phase behavior. Temperature-dependent dynamic mechanical analysis (DMA) and DSC show that the semi-IPN's prepared from concentrated solution show weak crystallinity of the PPE phase. After heating above the PPE melting transition the semi-IPN's remain amorphous and the relaxation in the glass transition region as well as the terminal relaxation of the free PPE chains in the network is studied as a function of PPE concentration and network density.

yearjournalcountryeditionlanguage
1994-03-01Colloid and Polymer Science
https://doi.org/10.1007/bf00655496