Ionic liquids: Media for starch dissolution, plasticization and modification

Wilpiszewska, Katarzyna; Spychaj, Tadeusz

doi:10.1016/j.carbpol.2011.06.001

Cited by 151 publications

(106 citation statements)

References 41 publications

Supporting

Mentioning

103

Contrasting

Order By: Relevance

“…Their often unique property profiles are extremely low volatility, good thermal stability, wide liquid temperature range, nonflammability, good dissolving ability, low viscosity, negligible vapor pressure, and high ionic conductivity. [21][22][23][24][25][26][27][28][29] The aim of this study is the use of natural amino acid building blocks for efficient synthesis of novel biodegradable and chiral nanostructured PAIs, using molten tetrabutylammonium bromide (TBAB) as green medium. PAIs with main-chain chirality were synthesized via direct step-growth polymerization reaction of different chiral diacids (4a-4d) with 4,4′-methylenebis(3-chloro-2,6-diethylaniline) (MCDEA).…”

Section: Introductionmentioning

confidence: 99%

In vitrostudies on biodegradable chiral nanostructure poly(amide-imide)s containing different natural amino acids in green medium

Mallakpour

Iderli

Rahimmalek

2013

Designed Monomers and Polymers

View full text Add to dashboard Cite

α-Amino acids, as one type of the major building blocks of living systems, are the principal components of all naturally occurring peptides and proteins. The aim of this paper was to synthesize and characterize of novel chiral nanostructured poly(amide-imide)s (PAIs) that are biologically active and biodegradable under a natural environment. PAIs were prepared from the polycondensation reaction of optically active diacids monomers containing different natural amino acids with 4,4′-methylene bis(3-chloro-2,6-diethylaniline) in molten tetrabutylammonium bromide as a green solvent. In vitro fungal colonization and weight loss studies showed that the synthetic polymer having alanine amino acid is biologically more active compared to the other components, nontoxic to microbial growth and could be classified as biodegradable compounds. The synthesized PAIs were characterized by different techniques. The field-emission scanning electron microscopy showed that the obtained PAIs were nanostructured polymers.

show abstract

Section: Introductionmentioning

confidence: 99%

In vitrostudies on biodegradable chiral nanostructure poly(amide-imide)s containing different natural amino acids in green medium

Mallakpour

Iderli

Rahimmalek

2013

Designed Monomers and Polymers

View full text Add to dashboard Cite

show abstract

“…Cellulose films and fibers produced from ILs solutions could be modified to improve their water absorption, dyeability, and mechanical and bactericidal properties [5][6][7]. It was found that ILs could dissolve not only cellulose but other carbohydrates [8], chitin, chitosan [9][10][11], and starch [12] proteins such as Bombyx mori silk fibroin [13,14] and wool keratin [15]. It is possible to obtain unique mixtures of polymers in ILs, for example, mixtures of cellulose, starch, and lignin [16].…”

Section: Introductionmentioning

confidence: 99%

Blending of Cellulose and Chitosan in Alkyl Imidazolium Ionic Liquids

Kuzmina

Heinze

Wawro

2012

ISRN Polymer Science

View full text Add to dashboard Cite

The production of cellulose/chitosan blends in alkyl imidazolium ionic liquids (ILs) was studied in this work. Selected organic solvents, such as dimethyl sulfoxide, ethyl acetate, and diethyl ether, were used as cosolvents. The addition of cosolvents decreased the viscosity of cellulose/chitosan solutions in ILs and facilitated the dissolution of polysaccharides, thereby decreasing the E act and polymer aggregates sizes in the solutions. The cellulose/chitosan films were produced from the studied solutions. The presence of one of cosolvent and ILs in the blended films was confirmed by FTIR spectroscopy. The blended film is stronger than pure cellulose film, and the addition of cosolvents has an influence on its mechanical properties.

show abstract

“…whereas homogeneous media will certainly bring a higher reactivity [6], [7]. One possibility for the dissolution of starch is to use ionic liquids [8].…”

Section: Introductionmentioning

confidence: 99%

Task-specific ionic liquid for the depolymerisation of starch-based industrial waste into high reducing sugars

et al. 2014

View full text Add to dashboard Cite

Development of a simple route for the catalytic conversion of starch-based industrial waste (potato peels) and potato starch into reducing sugars was investigated in two ionic liquids for comparison -1-allyl-3-methylimidazolium chloride [AMIM]Cl and 1-(4-sulfobutyl)-3-methylimidazolium chloride [SBMIM]Cl. Over a two hour period, a 20 wt % solution containing up to 43% and 98% of reducing sugars at low temperature in aqueous [SBMIM]Cl were achieved for the starch-based waste and the potato starch, respectively. In addition, the use of microwave and low frequency ultrasound to perform the depolymerisation of the raw starch-based material was explored and compared with conventional heating processes.

show abstract

Ionic liquids: Media for starch dissolution, plasticization and modification

Cited by 151 publications

References 41 publications

In vitrostudies on biodegradable chiral nanostructure poly(amide-imide)s containing different natural amino acids in green medium

In vitrostudies on biodegradable chiral nanostructure poly(amide-imide)s containing different natural amino acids in green medium

Blending of Cellulose and Chitosan in Alkyl Imidazolium Ionic Liquids

Task-specific ionic liquid for the depolymerisation of starch-based industrial waste into high reducing sugars

Contact Info

Product

Resources

About