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Summary
Amino-terminated poly(N-isopropylacrylamide) (PNIPAM-NH2) was synthesized by free-radical polymerization in water by using the redox pair potassium persulfate/2-aminoethanethiol… (More)
A great deal of research on polymers over the past two decades has been focused on the development of stimuli-responsive polymers to obtain materials able to respond to specific surroundings. In this… (More)
This study describes the stability and rheological behavior of suspensions of poly(N-isopropylacrylamide) (PNIPAM), poly(N-isopropylacrylamide)-chitosan (PNIPAM-CS), and… (More)
- Ruza Gabriela Medeiros de Araújo Macedo, Nívia do Nascimento Marques, Josealdo Tonholo, Rosângela de Carvalho Balaban
- Carbohydrate polymers
- 2019
Biodegradability and ecotoxicity of products used in oil industry are of great relevance and corrosion inhibitor could not be an exception. In earlier reports, chitosan and some derivatives were… (More)
Abstract This paper studies the synthesis and characterization of two grafted copolymers with thermoresponsive properties, consisting of amino terminated poly(ethylene oxide/propylene oxide) grafted… (More)
- Nívia do Nascimento Marques, Bruna Vital de Lima, Valdelice Rodrigues da Silveira, Bruna Luiza Batista de Lima, Ana Maria S. Maia, Rosângela de Carvalho Balaban
- Colloid and Polymer Science
- 2016
The use of free radicals has been considered an easy way to get grafted polymers. However, its reproducibility has not yet been evaluated. In this paper, the synthesis reproducibility of copolymers… (More)
- Nívia do Nascimento Marques, Rosângela de Carvalho Balaban, Sami Halila, Redouane Borsali
- Carbohydrate polymers
- 2018
Graft copolymers based on carboxymethylcellulose (CMC) and thermosensitive polyetheramines (ethylene oxide/propylene oxide = 33/10 and 1/9) were prepared in water, at room temperature, by using a… (More)
- Ruza Gabriela Medeiros de Araújo Macedo, Nívia do Nascimento Marques, +4 authors Rosângela de Carvalho Balaban
- Carbohydrate polymers
- 2019
A water-soluble carboxymethylchitosan (CMC) was prepared in water/isopropanol (2/8) medium, at 10 °C, and characterized by UV-vis, FT-IR and NMR techniques. Its performance as an environmentally… (More)