Boric acid co-crystals in guar gelation. Issue 47 (22nd November 2017)

• Record Type: Journal Article
• Authors: Perrin, Andrea; Goodwin, Melissa J.; Musa, Osama M.; Yufit, Dmitry S.; Steed, Jonathan W.
• Is Part Of: CrystEngComm. Volume 19:Issue 47(2017)
• Page Start: 7125
• Page End: 7131
• Publication Date: 2017-11-22
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c7ce01858d
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Boric acid/lactam co-crystals have been applied as novel delivery agents for guar cross-linking. Abstract : A series of bis(pyrrolidone) and ε-caprolactam co-crystals of boric acid and 1, 4-phenylenediboronic acid are reported. The high polarity of the lactam carbonyl group is highly complementary to the boronic acid hydrogen bond donor functionalities and co-crystals are based on cyclic boronic acid tape motifs, including an unusual donor–donor motif, with strong perpendicular interactions to the lactam functionalities. All of the co-crystals are able to act as a source of boric or boronic acid cross-linker in guar gelation.