English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Pro

Presents the zaia usage as premium feature

ZAIA

Presents AI Discovery search usage as a premium feature

AI Discovery

Presents AI Discovery explain and summary usage as a premium feature

Content Analysis

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Presents the pdf analysis as premium feature

PDF Analysis

1500 Top-up

3000 Top-up

Zendy Basic

2500 Top-up

Zendy Unlimited

Presents the access of premium content as premium feature

Premium Content

We report our results on the physicochemical study in aqueous solution of new amphiphilic polysaccharide derivatives, obtained by attachment of long-chain alkylamines (Cn-NH2 n = 8, 12, 14) onto propylene glycol alginate (PGA), a partially esterified derivative of sodium alginate [8, 9, 10, 11]. The alginate salts differ from most other polysaccharides in that they exhibit a sol-gel transition when simply submitted to modifications of their ionic environment, e.g. substitution of Na+ by divalent cations such as Ca2+. Such a property is an additional motivation for the preparation of amphiphilic macromolecules and their study, not only in solution, but also in the near future in the gel state, both for theoretical reasons and because of the potential improvements they may bring to existing biomedical applications.

Rheological Study of Aqueous Solutions of Hydrophobically-Associating Derivatives of Propylene Glycol Alginate (Pga)