PREPARATION AND PROPERTIES OF N-n-ALKYLLACTAMIDES<sup>2</sup>

Ratchford, William P.

doi:10.1021/jo01148a014

Cited by 13 publications

(5 citation statements)

References 10 publications

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“…In 2013, the global lactic acid market was 714 kt . To produce AGNIQUE AMD 3L lactic acid methyl ester is transformed in a subsequent process step with dimethylamine to N , N ‐dimethyl lactamide …”

Section: Introductionmentioning

confidence: 99%

AGNIQUE AMD 3L as green solvent for polyethersulfone ultrafiltration membrane preparation

Gronwald

Weber

2019

J of Applied Polymer Sci

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With the advent of the green chemistry concept novel, innocuous, biodegradable solvents require introduction in industrial processes. N,N-dimethyl lactamide (AGNIQUE AMD 3L) represents a bio-based, biodegradable, label-free polar, protic solvent. In this article, AGNIQUE AMD 3L is introduced as novel solvent for preparation of polyethersulfone (PESU) nonsolvent-induced phase separation ultrafiltration membranes using polyvinylpyrrolidone or poly(ethylene oxide) as second dope additives. Analysis of Hansen solubility parameters indicates good solvent-polymer interactions for polymer dope compositions required for PESU membrane manufacturing. Depending on the process conditions, PESU ultrafiltration membranes with hydraulic permeability values up to 610 kg m −2 × bar × h and molecular weight cutoff value of 20 kDa were obtained. Scanning electron microscope of membrane cross sections reveals perfect defectfree, asymmetric morphologies. As a result, AGNIQUE AMD 3L provides a new alternative as replacement for polar, aprotic solvents employed in membrane manufacturing so far.

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Section: Introductionmentioning

confidence: 99%

AGNIQUE AMD 3L as green solvent for polyethersulfone ultrafiltration membrane preparation

Gronwald

Weber

2019

J of Applied Polymer Sci

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“…More recently some acetates, acrylates and methacrylates of substituted lactamides have been reported. [8][9][10][11] This paper reports various additional esteramides of lactic acid particularly esters of the N,Ndisubstituted lactamides and the hydroxyalkyl lactamides. The preparation of some of these ester-amides by simultaneous direct esterification…”

Section: Methodsmentioning

confidence: 99%

N-Substituted Lactamides

Fein¹,

Filachione²

1953

J. Am. Chem. Soc.

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May 5, l9d.3 N-SUBSTITUTED LACTAMIDES 2097 the catalyst and solvent left a red sirup which readily crystallized to a yellow solid when heated with 100 ml. of water and 20 ml. of concentrated ammonium hydroxide. Most of the color could be removed by slurrying with cold ethyl acetate. Three experiments gave 25.2, 23.2 and 26.5 g. of crude product (melting above 146') suitable for the next step. A sample recrystallized from ethanol melted a t 154-155" uncor.Anal. Calcd. for C1,

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“…Since the first paper dealing with N -substituted alkyl lactamides synthesized by Ratchford [80] was published in 1950 there was not very much activity until the year 2000. In their works Ratchford and Fisher described some physical properties (melting and boiling points, density and refractive index), but they did not explicitly identify their products as surfactant or amphiphiles and therefore did not investigate the micellization and adsorption properties.…”

Section: Physicochemical Propertiesmentioning

confidence: 99%

Amino Acids, Lactic Acid and Ascorbic Acid as Raw Materials for Biocompatible Surfactants

Morán

Pérez²,

Pinazo³

et al. 2010

Surfactants From Renewable Resources

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PREPARATION AND PROPERTIES OF N-n-ALKYLLACTAMIDES²

Cited by 13 publications

References 10 publications

AGNIQUE AMD 3L as green solvent for polyethersulfone ultrafiltration membrane preparation

AGNIQUE AMD 3L as green solvent for polyethersulfone ultrafiltration membrane preparation

N-Substituted Lactamides

Amino Acids, Lactic Acid and Ascorbic Acid as Raw Materials for Biocompatible Surfactants

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PREPARATION AND PROPERTIES OF N-n-ALKYLLACTAMIDES2

Cited by 13 publications

References 10 publications

AGNIQUE AMD 3L as green solvent for polyethersulfone ultrafiltration membrane preparation

AGNIQUE AMD 3L as green solvent for polyethersulfone ultrafiltration membrane preparation

N-Substituted Lactamides

Amino Acids, Lactic Acid and Ascorbic Acid as Raw Materials for Biocompatible Surfactants

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Product

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PREPARATION AND PROPERTIES OF N-n-ALKYLLACTAMIDES²