Chemical modification of chitosan in the absence of solvent for diclofenac sodium removal: pH and kinetics studies

Autor: Kerlaine Alexandre Araújo Pereira, Kaline S. Sousa, Marcos Pereira da Silva, Luizangela Reis Osório, Edson Cavalcanti da Silva Filho

Publikováno v: Materials Research, Vol 17, Iss suppl 1, Pp 141-145 (2014)
Materials Research v.17 suppl.1 2014
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 17 Supplement 1, Pages: 141-145, Published: 15 APR 2014

Chitosan was modified with acetylacetone and ethylenediamine in the absence of solvent. The new biopolymer obtained from the modification was characterized by elemental analysis and NMR 13C and applied in the removal of diclofenac sodium aqueous solu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20d5d2b6576721aa6622b61d57f1fadd
http://www.scielo.br/pdf/mr/v17s1/aop_matres_228113.pdf

Chitosan-montmorillonite biocomposite as an adsorbent for copper (II) cations from aqueous solutions

Autor: Graycyelle R.S. Cavalcanti, Maria G. Fonseca, Kaline S. Sousa, Antonio G. Souza, Francisco Ruidomar Pereira, Ana Priscila Alves

Publikováno v: International Journal of Biological Macromolecules. 61:471-478

Chitosan-montmorillonite (KSF-CTS) beads were prepared by crosslinking with pentasodium tripolyphosphate (TPP). Montmorillonite (KSF-Na), CTS and KSF-CTS biocomposite were used to remove Cu(II) from aqueous solutions. These materials were characteriz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac7f9566759ccd43ebe745ed8a5dd863
https://doi.org/10.1016/j.ijbiomac.2013.08.017

Immobilization of ethylene sulfide in aminated cellulose for removal of the divalent cations

Autor: Fabrícia C. Silva, Kaline S. Sousa, Sirlane A.A. Santana, Maria G. Fonseca, Edson Cavalcanti da Silva Filho, Luciano C. B. Lima

Publikováno v: Carbohydrate Polymers. 92:1203-1210

a b s t r a c t Cellulose (Cel) was first chemically modified with thionyl chloride to increase its reactivity. In the next step CelCl was reacted with ethylenediamine (CelEn) and subsequently reacted with ethylene sulfide to obtain a solid substance

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d665291c213eae3a525f79f32c2b37fc
https://doi.org/10.1016/j.carbpol.2012.10.031

Thermochemistry of interaction between cellulose modified with 2-aminomethylpyridine and divalent cations

Autor: Maria Rita de Morais Chaves Santos, Edson Cavalcanti da Silva Filho, Luiz de Sousa Santos Júnior, Sirlane A.A. Santana, Maria G. Fonseca, Claudio Airoldi, Kaline S. Sousa

Publikováno v: Journal of Thermal Analysis and Calorimetry. 114:423-429

Cellulose, a biopolymer seemingly inert, was chlorinated initially by reaction with thionyl chloride and then after it becomes more reactive, reacted with 2-aminomethylpyridine molecule for increasing its capacity of removal of divalent cations from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3998ed46a4e2839e3a7e530b6ba20b5
https://doi.org/10.1007/s10973-012-2917-y

Ethylenesulfide as a useful agent for incorporation on the biopolymer chitosan in a solvent-free reaction for use in lead and cadmium removal

Autor: Kaline S. Sousa, Pedro D. R. Monteiro, Claudio Airoldi, Edson Cavalcanti da Silva Filho

Publikováno v: Journal of Thermal Analysis and Calorimetry. 106:369-373

In this work Chitosan (Ch) was chemically modified with ethylenesulfide (Es) under solvent-free conditions to give (ChEs), displaying a high content of thiol groups due to opening of the three member cyclic reagent. ChEs was used in studies of lead a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b1c35bcc48499dcdde00d6ac64fd699
https://doi.org/10.1007/s10973-010-1205-y