Orientation ordered polymers
This research project seeks ways to come up to mechanically optimized materials with polymeric materials by introducing a spontaneous orientation order.
Long chains of polymer materials become entangled themselves. The liquid and the glass state such materials are characterized by a short-range order of position and orientation of the chain segments. Transitioning to a crystalline or partly crystalline phase a position long-range order of chain segments establishes and with it an orientation order. This can be far-reaching and can then be described as a long-range order.
Low molecular systems with a suitable molecular form (e.g. rigid sticks or slices) show between the isotropic and the crystalline, the “liquid-crystalline” phases which are independent thermodynamically stable (mesophase). In these cases no or only limited position longe-range order exists (like in usual liquids), but instead a spontaneous orientation longe-range order exists (like in usual crystals).