CO2 Promoted Gel Formation of Hydrazine, Monomethylhydrazine, and Ethylenediamine: Structures and Properties

被引：3

作者：

Pollet, Pamela ^{[1
]}

Samanta, Susnata ^{[1
]}

Apkarian, Robert P. ^{[2
]}

Gelbaum, Leslie ^{[1
]}

Leisen, Johannes ^{[1
]}

Kitchens, Christopher L. ^{[4
]}

Griffith, Kris ^{[3
]}

Richman, Kent ^{[3
]}

Eckert, Charles A. ^{[5
]}

Liotta, Charles L. ^{[1
,5
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

[2] Emory Univ, Integrated Microscopy & Microanalyt Facil, Atlanta, GA 30322 USA

[3] Amer Pacific Corp, Cedar City, UT 84721 USA

[4] Clemson Univ, Sch Chem & Biomol Engn, Clemson, SC 29634 USA

[5] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2019年 / 58卷 / 50期

关键词：

CHEMICALLY REVERSIBLE ORGANOGELS; MAGNETIC-RESONANCE-SPECTROSCOPY; CARBON-DIOXIDE; AQUEOUS HYDRAZINE; ALIPHATIC-AMINES; LATENT GELATORS; SOLID-STATE; CRYO-HRSEM; SOLVENT; NMR;

D O I：

10.1021/acs.iecr.9b03317

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Hydrazine, monomethylhydrazine, and ethylenediamine react readily and reversibly with carbon dioxide to form hydrazinium carboxylate, monomethylhydrazinium carboxylate, and ammonium carbamate adducts, respectively. These adducts act as low molecular weight gelators, which self-assemble and in doing so trap unreacted hydrazine or diamine. The properties and molecular structures of the gels were investigated by means of elemental analysis, DSC/TGA, heteronuclear NMR (H-1, N-15, and C-13), diffusion-ordered NMR spectroscopy (DOSY), and cryo-immobilized high resolution scanning electron microscopy (cryo-HRSEM). These complementary techniques provided the foundation for developing a pictorial representation of the bulk gel structures on the molecular level.

引用

页码：22652 / 22662

页数：11

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