Copolymers of acrylamide N-alkylacrylamide in aqueous solution: the effects of hydrolysis on hydrophobic interactions

Simon Biggs, Joseph Selb, Françoise Candau

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

Two copolymers of acrylamide N-4-ethylphenylacrylamide have been prepared by an aqueous micellar copolymerization technique with two different amounts of an anionic surfactant (sodium dodecyl sulphate). Such changes in the polymerization medium give copolymers with different microstructures. Samples of each copolymer were subsequently hydrolysed to 10, 20 and 40% completion. Hydrophobic interactions of all the samples in aqueous solution were then studied in the semi-dilute concentration range near to and above the chain overlap concentration, c*, via rheological and fluorescence techniques. The samples were each studied as a function of concentration, salt concentration, surfactant concentration and temperature. In all cases, the rheological and the fluorescence data were consistent and directly related to the number of interchain liaisons in solution. The number of interchain liaisons increased with increase in the copolymer hydrophobicity and were hence related to the hydrolysis level and the blockiness of the copolymer.

Original languageEnglish
Pages (from-to)580-591
Number of pages12
JournalPolymer
Volume34
Issue number3
DOIs
Publication statusPublished - 1 Jan 1993
Externally publishedYes

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Acrylamide
Hydrolysis
Copolymers
Fluorescence
Anionic surfactants
Sodium dodecyl sulfate
Hydrophobicity
Surface-Active Agents
Sodium Dodecyl Sulfate
Copolymerization
Surface active agents
Salts
Polymerization
Microstructure
Temperature

Cite this

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abstract = "Two copolymers of acrylamide N-4-ethylphenylacrylamide have been prepared by an aqueous micellar copolymerization technique with two different amounts of an anionic surfactant (sodium dodecyl sulphate). Such changes in the polymerization medium give copolymers with different microstructures. Samples of each copolymer were subsequently hydrolysed to 10, 20 and 40{\%} completion. Hydrophobic interactions of all the samples in aqueous solution were then studied in the semi-dilute concentration range near to and above the chain overlap concentration, c*, via rheological and fluorescence techniques. The samples were each studied as a function of concentration, salt concentration, surfactant concentration and temperature. In all cases, the rheological and the fluorescence data were consistent and directly related to the number of interchain liaisons in solution. The number of interchain liaisons increased with increase in the copolymer hydrophobicity and were hence related to the hydrolysis level and the blockiness of the copolymer.",
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Copolymers of acrylamide N-alkylacrylamide in aqueous solution : the effects of hydrolysis on hydrophobic interactions. / Biggs, Simon; Selb, Joseph; Candau, Françoise.

In: Polymer, Vol. 34, No. 3, 01.01.1993, p. 580-591.

Research output: Contribution to journalArticle

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T1 - Copolymers of acrylamide N-alkylacrylamide in aqueous solution

T2 - the effects of hydrolysis on hydrophobic interactions

AU - Biggs, Simon

AU - Selb, Joseph

AU - Candau, Françoise

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