6533b7defe1ef96bd1275bf9

RESEARCH PRODUCT

Indication of an order-order-transition by a partial disordering in ABC-triblock copolymers

Volker AbetzReimund StadlerClaudius Neumann

subject

CrystallographyDifferential scanning calorimetryAnionic addition polymerizationMaterials sciencePolymers and PlasticsThermal transitionPolymer chemistryMaterials ChemistryCopolymerGeneral ChemistryDynamic mechanical analysisCondensed Matter Physics

description

Poly(ethylene-alt-propylene)-block-polyethylethylene-block-polystyrene (PEP-b-PEE-b-PS) triblock copolymers were synthesized by anionic polymerization and subsequent hydrogenation of poly-1,4-isoprene-block-poly-1,2-butadiene-block-polystyrene triblock copolymers (1,4PI-b-1,2PB-b-PS). Differential scanning calorimetry and dynamic mechanical spectroscopy reveal an order-order transition which is induced by the mixing of PEP and PEE above their respective order-disorder transition (ODT).

https://doi.org/10.1007/bf00296006