Concentration-dependent thermochromism and supramolecular aggregation in solution of triblock copolymers based on lengthy oligothiophene cores and poly(benzyl ether) dendrons

Macromolecules

Volumn 33, Issue 19, 2000, Pages 7038-7043

  Apperloo, Joke J ^a   Janssen, René A J ^a   Malenfant, Patrick R L ^b   Fréchet, Jean M J ^b  

^a EINDHOVEN UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AGGLOMERATION; LIGHT ABSORPTION; MOLECULAR STRUCTURE; OLIGOMERS; POLYETHERS; SULFUR COMPOUNDS; THERMAL EFFECTS;

OLIGOTHIOPHENE; POLYBENZYL ETHER; THERMOCHROMISM;

BLOCK COPOLYMERS;

EID: 0034272252     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma000793+     Document Type: Article

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55. w = 42.4 kg/ mol) the absorption maximum for the molecularly dissolved polymer in dichloromethane is at 2.71 eV (458 nm), while the low-temperature vibronics of aggregated chains are at 2.05, 2.24 and 2.40 eV (605, 554, and 517 nm, respectively).