6533b86ffe1ef96bd12cdb58
RESEARCH PRODUCT
false
Joachim H. WendorffVladimir V. TsukrukHelmut RingsdorfJürgen WendlingManfred MöllerHolger Bengssubject
chemistry.chemical_compoundMaterials scienceDifferential scanning calorimetrychemistryLiquid crystalPhase (matter)ComonomerSiloxanePolymer chemistryMesophasePendant groupAmorphous soliddescription
The synthesis and the results of the structural study of two copolysiloxanes with laterally fixed trinitrofluorenone (TNF) units is reported. The two copolysiloxanes having 2,4 (1a) and 5,3 (1b) dimethylsiloxane comonomer units per TNF side group differ significantly in their phase behaviour as evident from optical microscopy, differential scanning calorimetry and X-ray scattering: 1b shows a nematic mesophase whereas 1a is an amorphous material. The different phase behaviour is discussed in terms of microphase separation between the siloxane backbone and TNF side groups.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-10-01 | Die Makromolekulare Chemie |