Hydrophobically modified inulin from alkenyl succinic anhydride in aqueous media

Cashew gum (CG) shows promise of being useful as an agro-based raw material for the production of eco-friendly and biodegradable polymers. In this work, we modified this water-soluble polymer with alkenyl succinic anhydride in order to attach a hydrophobic group to it. The modification used two reagents: octenyl succinic anhydride and tetrapropenyl succinic anhydride. Reactions were conducted at 120 °C using dimethyl sulfoxide as a solvent, with conversions better than 88%. Samples with degrees of substitution (DS) between 0.02 and 0.20 were made. The resulting polymers were characterized using 1H NMR, 13C NMR, FTIR, TGA, and GPC. The addition of the hydrophobe decreased the affinity of cashew gum for water absorption. Hydrophobically modified polysaccharides are often used as polymeric emulsifiers, thickeners, and compatibilizers; we anticipate that these new hydrophobically modified CGs may be used for the same applications.

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Copolymer Micelles with Polyelectrolyte Shell in Aqueous Media. A Mean-Field Study

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc20060756 ◽

2006 ◽

Vol 71 (5) ◽

pp. 756-768 ◽

Cited By ~ 1

Author(s):

Karel Jelínek ◽

Filip Uhlík ◽

Zuzana Limpouchová ◽

Pavel Matějíček ◽

Karel Procházka

Keyword(s):

Aqueous Media ◽

Excitation Energy Transfer ◽

Mean Field ◽

Hydrophobically Modified ◽

Small Influence ◽

Covalently Bonded ◽

Self Consistent Field ◽

Copolymer Micelles ◽

And Behavior ◽

Scf Calculations

The multimolecular micelles formed by polystyrene-block-poly(methacrylic acid) (PS-PMA) copolymer and by hydrophobically modified PS-PMA copolymer with naphthalene and anthracene (PS-N-PMA-A) were studied by self-consistent field (SCF) calculations in aqueous media. The labeling with covalently bonded naphthalene between PS and PMA blocks and with anthracene at the free end of PMA blocks, which is suitable for experimental nonradiative excitation energy transfer (NRET) studies of PS-N-PMA-A micelles, modifies the structure of micellar shell. The study was aimed at understanding structure and behavior of micelles at different pH and ionic strength. The results show that the presence of hydrophobic tags has only a small influence on the overall structure of micelles but it strongly affects the distribution of PMA free ends. The hydrophobic labels (anthracenes) try to return into the shell and their certain fraction is localized close to the core/shell interface, which causes a fairly high NRET efficiency. The calculated and experimentally measured NRET efficiency were compared; their trends are reasonable at the semiquantitative level.

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Surface modification of cellulose nanofibers with alkenyl succinic anhydride for high-density polyethylene reinforcement

Composites Part A Applied Science and Manufacturing ◽

10.1016/j.compositesa.2015.11.009 ◽

2016 ◽

Vol 83 ◽

pp. 72-79 ◽

Cited By ~ 60

Author(s):

Akihiro Sato ◽

Daisuke Kabusaki ◽

Hiroaki Okumura ◽

Takeshi Nakatani ◽

Fumiaki Nakatsubo ◽

...

Keyword(s):

Surface Modification ◽

High Density Polyethylene ◽

Succinic Anhydride ◽

Cellulose Nanofibers ◽

High Density ◽

Alkenyl Succinic Anhydride

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Alkenyl Succinic Anhydride Structure Influences the Surface Activities of Gelatin Derivatives

Journal of Surfactants and Detergents ◽

10.1007/s11743-015-1721-7 ◽

2015 ◽

Vol 19 (1) ◽

pp. 1-9 ◽

Cited By ~ 7

Author(s):

Li-Huei Lin ◽

Hsin-Jiant Liu ◽

Hawn-Chung Chu ◽

Mou-Chuan Hwang ◽

Keng-Ming Chen ◽

...

Keyword(s):

Succinic Anhydride ◽

Surface Activities ◽

Alkenyl Succinic Anhydride

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Lauric Arginate/Cellulose Nanocrystal Nanorods-Stabilized Alkenyl Succinic Anhydride Pickering Emulsion: Enhancement of Stabilization and Paper Sizing Performance

10.21203/rs.3.rs-1126328/v1 ◽

2021 ◽

Author(s):

Yucheng Li ◽

Dehai Yu ◽

Xiangyu Wang ◽

Qiang Wang ◽

Zhen Zhang ◽

...

Keyword(s):

High Performance ◽

Succinic Anhydride ◽

Academic Community ◽

Cellulose Nanocrystal ◽

Low Carbon ◽

Chemical Additives ◽

Low Carbon Economy ◽

Alkenyl Succinic Anhydride ◽

Paper Sizing ◽

Lauric Arginate

Abstract Biodegradable colloidal particle materials are becoming attractive candidates as eco-friendly chemical additives in the low-carbon economy era. However, developing cheap, stable, and efficient paper-sizing agents is still a challenging issue both for paper making academic community and industry. Here, an easy-fabricating, stable, and high-performance alkenyl succinic anhydride (ASA) paper-sizing emulsion is developed, which is stabilized by lauric arginate (LAE)/cellulose nanocrystal (CNC) nanorods. Furthermore, the chemical crosslinking between ASA and LAE/CNC nanorods can adjust the wettability and interfacial adsorption of LAE/CNC, resulting in improved stability of ASA-sizing emulsion. This novel paper-sizing emulsion shows a small droplet size (0.8 μm), high hydrolysis resistance, and a high paper-sizing degree (300 s) along with a remarkable hydrophobicity contact angle of 110° for long-term storage. This work opens a door for realizing an interfacial self-assembled Pickering-stabilizer, which leads to an environmentally friendly, pervasive and cost-effective emulsification technique for the next-generation paper-sizing additives.

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