Polymeric multifunctional carboxylic acids as crosslinking agents for cotton cellulose: Poly(itaconic acid) andin situ polymerization of itaconic acid

Mao, Zhiping; Yang, Charles Q.

doi:10.1002/1097-4628(20010110)79:2<319::aid-app140>3.0.co;2-v

Cited by 21 publications

(6 citation statements)

References 20 publications

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“…The presence of counterions in the medium increases the ionic strength, the expansion of the network decreases due to the shielding effect of the charged ions bounded to the network and the reduction in the osmotic pressure difference between the gel and the external solution. [ 45,46 ] However, E2, E3, E4, and E5 esters showed anti‐polyelectrolytic behavior, where they swell more in saline solutions (NaCl, KCl, MgCl 2 , and FeCl 3 ) than in water. In these solutions, a cationic exchange could occur between the dissociated ions of the salt and the H 3 O + generated by the ionization of the functional groups of the gel, which would cause a matrix expansion.…”

Section: Resultsmentioning

confidence: 99%

Succinylated Starches for Dye Removal

2020

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Succinylated bitter cassava starches were evaluated for the removal of cationic, methylene blue (MB) and anionic, methyl orange (MO) dyes present in water. The native starch (NS) extracted from bitter cassava by the dry method, was modified using succinic anhydride (SA) as esterifying agent and sodium hydroxide (NaOH), sodium carbonate (Na 2 CO 3 ), sodium sulfate (Na 2 SO 4 ) and sodium chloride (NaCl) as non-toxic and environmentally friendly catalysts. The effect of the type and concentration of catalyst on the modification was evaluated. Starch replacement with SA was confirmed by Fourier transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WAXS), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The degree of substitution in the resulting succinylated starches (GS) was determined by volumetric analysis, presenting high values (0.5-0.9). These materials arisen superabsorbent gels, sensitive to changes in pH and ionic strength, and mostly with anti-polyelectrolytic behavior. MB dye had a higher affinity for succinylated starches than the MO dye. The removal capacity of MB was also influenced by the pH and the ionic strength of the solution. The kinetics and adsorption isotherms were satisfactorily adjusted to the pseudo-second order and Freundlich models, respectively. The esters functionalities of the starch proved to be reusable adsorbents, completing successfully five cycles of adsorption-desorption.

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Section: Resultsmentioning

confidence: 99%

Succinylated Starches for Dye Removal

2020

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“…6,7 In the textile industry, itaconic acid has been attempted to use as an anti-crease agent for cellulose bers. 8 Cellulose bers such as cotton, linen and hemp have been popular bers for a long time as they have many excellent properties, e.g. they are comfortable to wear from their good ventilation, able to absorb moisture well, strong, and durable.…”

Section: Introductionmentioning

confidence: 99%

“…Carboxylic acid compounds were thus used as substitutes for formaldehyde as anti-crease agents. 8 The purpose of this study is to produce bio-synthesized itaconic acid from empty palm oil fruit bunches (EPOFB) by separating the acid from the fermentation solution and then applying the acid as an anti-crease nish for cotton fabrics. Itaconic acid is a di-carboxylic compound with a potential of being a crosslink agent in the same manner as 1,2,3,4-butanetetracarboxylic acid (BTCA), a compound that is widely used in the industry.…”

Section: Introductionmentioning

confidence: 99%

Bio-synthesis of itaconic acid as an anti-crease finish for cellulosic fiber fabric

et al. 2021

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“…The polymerization of IA and its derivatives has been extensively studied. Specifically, the radical polymerization of IA and its various alkyl esters has been an active area of research. − As an example, Kamigaito and co-workers reported the synthesis of an almost completely IA derived triblock copolymer thermoplastic using reversible addition-fragmentation chain transfer (RAFT) polymerization . Dialkyl itaconates were polymerized by RAFT polymerization and then chain extended with N -phenyl itaconimide to give hard-soft-hard triblocks with glass-transition temperatures ( T g ) ranging from – 8 to 17 °C for the soft block (poly(dialkyl itaconate)) and 204 to 241 °C for the hard block (poly( N -phenyl itaconimide)).…”

Section: Introductionmentioning

confidence: 99%

Renewable Thermosets and Thermoplastics from Itaconic Acid

Trotta

Watts

Wong

et al. 2018

ACS Sustainable Chem. Eng.

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Renewable materials are a research necessity, with the creation of a sustainable chemical industry representing a grand challenge for the field of chemistry and materials science. On this basis, biorenewable resources are being transformed into degradable or recyclable high value polymers with a diverse array of applications. Itaconic acid (IA) is a notable biorenewable resource due to its low cost and large annual production. We report the synthesis of renewable thermosets and thermoplastics that are almost completely derived from IA. Using catalytic, solvent-free, and high yielding transformations from an itaconate source, we efficiently synthesized a saturated diol, a saturated diester, and an unsaturated diester. Subsequent binary step-growth polycondensation polymerizations between the diol and either diester generated polyesters with relatively high molar masses (>10 kg/mol). Ternary polymerizations of all three monomers in varying feed ratios produced polyesters with tunable amounts of unsaturated units along the backbone. Atom economies and low process mass intensities for these reactions reflect green processes. Thermoset materials were generated from these unsaturated terpolymers through thiol-ene click reactions with a potentially renewable cross-linker. We then established the tensile properties and molar mass between cross-links of these thermosets through mechanical testing and demonstrated hydrolytic stability under acidic and neutral conditions, but hydrolytic degradation under basic conditions. An α,ω-hydroxy terminated saturated polyester was prepared, functionalized with an atom transfer radical polymerization initiator, and then chain-extended with the α-methylene-γ-butyrolactone, which can be derived from IA, to give triblock polymers.

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Polymeric multifunctional carboxylic acids as crosslinking agents for cotton cellulose: Poly(itaconic acid) andin situ polymerization of itaconic acid

Cited by 21 publications

References 20 publications

Succinylated Starches for Dye Removal

Succinylated Starches for Dye Removal

Bio-synthesis of itaconic acid as an anti-crease finish for cellulosic fiber fabric

Renewable Thermosets and Thermoplastics from Itaconic Acid

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