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Properties of sericin films crosslinking with dimethylolurea

Conference:

Abstract

Sericin is a natural silk protein which is removed from silk in a process called degumming. Thus, finding a use for the extracted sericin as a bio polymer film will create added value product which will benefit both the economy and society. The films were manufactured with silk sericin, using different dimethylolurea (DMU) concentrations as cross-linking agent and glycerol as plasticizer. Sericin films produced by crosslinking method were light yellow, homogeneous, transparent and visually attractive. The average film thickness was 0.10 {+-} 0.02 mm. The bio films show low water solubility (up to 30% of total dry mass), good tension strength and high elongation ability. The water vapor permeability is moderate, typical of highly hydrophilic films. Structural transformations in silk sericin films were analyzed using Fourier transform infrared-attenuated total reflection (FTIR-ATR) spectroscopy and X-ray diffraction. This resulted in aggregated {beta}-sheet structure (peak at 1616 cm-1 in the amide I absorption) by FTIR studies and increasing the DMU concentration in film decreased the peak intensity at 2{theta} = 20 degree. Sericin-based film properties are dependent on components used to form film, which can used to tailor the desired film flexibility and minimize permeability of films. (author)
Authors:
Turbiani, Franciele R.B.; Stroher, Gylles Ricardo; [1]  Tomadon, Junior, Jose; Seixas, Fernanda L; Stroher, Gylles Ricardo; Gimenes, Marcelino L., E-mail: francieler@utfpr.edu.br [2] 
  1. Federal Technology University - UTFPR, Campus Apucarana, PR (Brazil)
  2. State University of Maringa. UEM, Campus Maringa, PR (Brazil)
Publication Date:
Jul 01, 2011
Product Type:
Conference
Report Number:
INIS-BR-11985
Resource Relation:
Conference: 11. Brazilian congress on polymers, 11. Congresso brasileiro de polimeros, Campos do Jordao, SP (Brazil), 16-20 Oct 2011
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; CROSS-LINKING; GELS; INFRARED RADIATION; PROTEINS; RADIATION CURING; STRUCTURAL CHEMICAL ANALYSIS; X RADIATION; X-RAY DIFFRACTION; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; COHERENT SCATTERING; COLLOIDS; CURING; DIFFRACTION; DISPERSIONS; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; ORGANIC COMPOUNDS; POLYMERIZATION; RADIATION EFFECTS; RADIATIONS; SCATTERING; SPECTROSCOPY
OSTI ID:
21608949
Research Organizations:
Associacao Brasileira de Polimeros (ABPol), Sao Carlos, SP (Brazil)
Country of Origin:
Brazil
Language:
English
Other Identifying Numbers:
TRN: BR12V2259087983
Availability:
Available from INIS in electronic form
Submitting Site:
BRN
Size:
7 pages
Announcement Date:
Sep 20, 2012

Conference:

Citation Formats

Turbiani, Franciele R.B., Stroher, Gylles Ricardo, Tomadon, Junior, Jose, Seixas, Fernanda L, Stroher, Gylles Ricardo, and Gimenes, Marcelino L., E-mail: francieler@utfpr.edu.br. Properties of sericin films crosslinking with dimethylolurea. Brazil: N. p., 2011. Web.
Turbiani, Franciele R.B., Stroher, Gylles Ricardo, Tomadon, Junior, Jose, Seixas, Fernanda L, Stroher, Gylles Ricardo, & Gimenes, Marcelino L., E-mail: francieler@utfpr.edu.br. Properties of sericin films crosslinking with dimethylolurea. Brazil.
Turbiani, Franciele R.B., Stroher, Gylles Ricardo, Tomadon, Junior, Jose, Seixas, Fernanda L, Stroher, Gylles Ricardo, and Gimenes, Marcelino L., E-mail: francieler@utfpr.edu.br. 2011. "Properties of sericin films crosslinking with dimethylolurea." Brazil.
@misc{etde_21608949,
title = {Properties of sericin films crosslinking with dimethylolurea}
author = {Turbiani, Franciele R.B., Stroher, Gylles Ricardo, Tomadon, Junior, Jose, Seixas, Fernanda L, Stroher, Gylles Ricardo, and Gimenes, Marcelino L., E-mail: francieler@utfpr.edu.br}
abstractNote = {Sericin is a natural silk protein which is removed from silk in a process called degumming. Thus, finding a use for the extracted sericin as a bio polymer film will create added value product which will benefit both the economy and society. The films were manufactured with silk sericin, using different dimethylolurea (DMU) concentrations as cross-linking agent and glycerol as plasticizer. Sericin films produced by crosslinking method were light yellow, homogeneous, transparent and visually attractive. The average film thickness was 0.10 {+-} 0.02 mm. The bio films show low water solubility (up to 30% of total dry mass), good tension strength and high elongation ability. The water vapor permeability is moderate, typical of highly hydrophilic films. Structural transformations in silk sericin films were analyzed using Fourier transform infrared-attenuated total reflection (FTIR-ATR) spectroscopy and X-ray diffraction. This resulted in aggregated {beta}-sheet structure (peak at 1616 cm-1 in the amide I absorption) by FTIR studies and increasing the DMU concentration in film decreased the peak intensity at 2{theta} = 20 degree. Sericin-based film properties are dependent on components used to form film, which can used to tailor the desired film flexibility and minimize permeability of films. (author)}
place = {Brazil}
year = {2011}
month = {Jul}
}