title: Self-assembly of poly(2-alkyl-2-oxazoline)s by crystallization in ethanol-water mixtures below the upper critical solution temperature.
abstract: Crystallization of poly(2-isobutyl-2-oxazoline) and poly(2-nonyl-2-oxazoline) is found to occur by room temperature annealing below the upper critical solution temperature in ethanol-water solvent mixtures. Both polymers produce similar self-assembled structures (see image), resembling the previously reported crystalline hierarchical structures obtained from hot aqueous poly(2-isopropyl-2-oxazoline) solutions above the lower critical solution temperature. These observations suggest that the crystallization induced self-assembly process is a rather general phenomenon occurring for semicrystalline polymers in liquid-liquid two phase systems.
authors: Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, D-14424 Potsdam, Germany.
authors: Christina
authors: C
authors: Diehl
authors: Ina
authors: I
authors: Dambowsky
authors: Richard
authors: R
authors: Hoogenboom
authors: Helmut
authors: H
authors: Schlaad
mesh_terms: D003460:Crystallization; D000431:Ethanol / Q000737:chemistry; D010080:Oxazoles / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: C507684:2-nonyl-2-oxazoline; D010080:Oxazoles; D011108:Polymers; D012997:Solvents; D014867:Water; D000431:Ethanol