Polyelectrolyte behavior of carrageenans in aqueous solutions | Zendy

Rinaudo M. | Zendy; Karimian A. | Zendy; Milas M. | Zendy

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Polyelectrolyte behavior of carrageenans in aqueous solutions

Author(s) -

Rinaudo M.,

Karimian A.,

Milas M.

Publication year - 1979

Publication title -

biopolymers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.556

H-Index - 125

eISSN - 1097-0282

pISSN - 0006-3525

DOI - 10.1002/bip.1979.360180707

Subject(s) - chemistry , counterion , aqueous solution , polyelectrolyte , potassium , limiting , ionic bonding , ionic strength , sodium , thermodynamics , inorganic chemistry , ion , organic chemistry , polymer , mechanical engineering , physics , engineering

Osmotic coefficients of sodium, potassium, and calcium counterions have been determined in aqueous solutions on kappa‐, iota‐, and lambda‐carrageenans at 25°C. The experimental results are correlated with the calculated ones from the limiting law of Manning. An orderd secondary structure exists in kappa‐ and iota‐carrageenans. Its stability is discussed as a function of temperature, ionic strength, and the nature of the counterions.

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