Results 41 to 50 of about 751,445 (279)

Synthesis, Characterization and Evaluation of the Transformations in Hibiscus sabdariffa-graft-poly(butyl acrylate)

open access: yesE-Journal of Chemistry, 2008
Different reaction parameters for the graft copolymerization of butyl acrylate onto Hibiscus sabdariffa fiber were optimized. Graft copolymers thus obtained were subjected to characterization using XRD, TGA, DTA, SEM and FTIR techniques and were ...
B. S. Kaith, Aashish Chauhan
doaj   +1 more source

Preparation of proton exchange membrane by radiation-induced grafting method : Grafting of styrene onto poly(ethylene tetrafluoroethylene) copolymer films [PDF]

open access: yes, 2004
Radiation induced grafting of styrene onto poly(ethylene-tetrafluoroethylene) (ETFE) copolymer film was carried out to prepare graft copolymer (ETFE-g-polystyrene) that can host sulfonic acid groups and form proton exchange membrane for polymer ...
Dahlan, K. M.   +3 more
core  

Graft copolymerized chitosan—present status and applications [PDF]

open access: yesCarbohydrate Polymers, 2005
Chitosan is a natural based polymer obtained by alkaline deacetylation of chitin, exhibiting excellent biological properties such as biodegradation in the human body, and immunological, antibacterial, and wound-healing activity. Chitosan has also been found to be a good candidate as a support material for gene delivery, cell culture and tissue ...
Jayakumar, R.   +3 more
openaire   +2 more sources

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Fortschritte bei der Synthese von Kunststoffen

open access: yesCHIMIA, 1974
One of the main tasks of industrial polymer research is to verify physical models via directed synthesis using common monomers. Recent advances in this direction are described in the area of copolymerization (alternating copolymers, random copolymers ...
H. Cherdon
doaj   +1 more source

Graft Copolymerization of Methacrylic Acid, Acrylic Acid and Methyl Acrylate onto Styrene–Butadiene Block Copolymer [PDF]

open access: yes, 1998
Methyl acrylate, methacrylic acid, and acrylic acid have been graft copolymerized onto styrene–butadiene block copolymer. All three monomers react through the macroradical interacting with the double bond of butadiene.
Jiang, David D., Wilkie, Charles
core   +1 more source

Metronidazole‐Loaded Cyclodextrin Nanogels for Antibacterial Therapy and Microbiota Regulation in Periodontitis

open access: yesAdvanced Healthcare Materials, EarlyView.
A methacrylamide β‐cyclodextrin‐based nanogel (MACD nGel) is developed to load the antimicrobial drug Metronidazole (MNZ) for topical delivery for the treatment of periodontitis. It is demonstrated that cyclodextrin nanogel (nGel) loaded with metronidazole provides an efficient drug delivery route but also has potential clinical applications and offers
Yanjing Ji   +8 more
wiley   +1 more source

Graft modification of carboxymethyl chitosan with styrene and its biological applications

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2020
Background Carboxymethyl chitosan (CMCh) is a water-soluble chitosan derivative and it has been widely used in biomedical applications due to its unique properties.
Omayma F. Abdel Gawad
doaj   +1 more source

Potassium persulfate induced grafting of polyacrylamide onto kappa-carrageenan [PDF]

open access: yesشیمی کاربردی روز, 2009
In this paper, the effect of different reaction conditions on the grafting of acrylamide (AM) onto kappa-carrageenan (kC) using potassium persulfate (KPS) initiator has been studied by determining the grafting parameters.
Hossein Hosseinzadeh
doaj   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche   +8 more
wiley   +1 more source

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