Structural rearrangements in hairy-rod polymer solutions undergoing shear

• Published in: Rheologica acta Vol. 38; no. 6; pp. 514 - 527
• Main Authors: Hilliou, Loic, Vlassopoulos, Dimitris, Rehahn, Matthias
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Berlin Springer 01.12.1999; Springer Nature B.V
• Subjects: Anisotropy; Applied sciences; Birefringence; Breakup; Clusters; Deformation; Dilution; Exact sciences and technology; Organic polymers; Physicochemistry of polymers; Polymers; Properties and characterization; Shear; Size distribution; Solution and gel properties; Time dependence; Vorticity; Conjugated polymer; Chemical solution; Phenylene derivative polymer; Shear flow; Concentration effect; Aromatic polymer; Temperature effect; Molecular rearrangement; Molecular aggregation; Experimental study; Comb polymer

We report on a rheooptical investigation of hairy-rod poly(p-phenylene) solutions at different concentrations and temperatures. These polymers have a reasonably high persistence length (about 28 nm) and behave as worm-like chains in dilute solutions, whereas they form nearly spherical fractal aggreg...