Tune of the helix sense of amino acid-containing poly(N-propargylamides) by temperature and solvent. Control by competition between structurally different units with the same chirality

Polymer

Volumn 46, Issue 9, 2005, Pages 2841-2846

  Zhao, Haichao ^a   Sanda, Fumio ^a   Masuda, Toshio ^a  

^a KYOTO UNIVERSITY   (Japan)

Author keywords

Amino acid; Helix; Polypropargylamide

Indexed keywords

AMINO ACIDS; CATALYSTS; COPOLYMERIZATION; COPOLYMERS; MOLECULAR WEIGHT; NITROGEN COMPOUNDS; SOLVENTS; THERMAL EFFECTS;

HELICAL STRUCTURES; HELIX CONVERSION; HOMOPOLYMERS;

ORGANIC POLYMERS;

AMIDE; AMINO ACID; COPOLYMER; SOLVENT;

ARTICLE; CATALYST; CHEMICAL PROCEDURES; CHEMICAL REACTION; CHEMICAL STRUCTURE; CHIRALITY; MOLECULAR WEIGHT; TEMPERATURE; ULTRAVIOLET RADIATION; ULTRAVIOLET SPECTROSCOPY;

POLYMER SCIENCE;

EID: 15744402905     PISSN: 00323861     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.polymer.2005.02.072     Document Type: Article

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29. 3 after filtration with a membrane filter (pore size: 0.45 μm to find no difference from that before filtration. When poly(N-propargylamides) aggregate, the CD spectroscopic pattern of a filtered sample solution becomes significantly different [See Sanda F, Araki H, Masuda T. Macromolecules 2004; 37, 8510-6]. Consequently, we can exclude the possibility of formation of aggregate whose size is larger than 0.45 μm.