You need JavaScript to view this

Dependence of crystallinity degree with induced grafting by gamma radiation of N,N{sup `}-dimethyl acrylamide; Dependencia do grau de cristalinidade com a graftizacao induzida por radiacao gama da N,N{sup `} - dimetilacrilamida em polietileno

Conference:

Abstract

N,N` -dimethyl acrylamide (DMAA) graft copolymerization onto polyethylene films was carried out, using a organic solvent as a reaction medium and gamma rays from a {sup 60} Co source for surface activation. Thermal analysis revealed the crystallinity and the grafting inversely proportional. The DSC curves fusion peaks decreased with grafting rate increase, the peak almost disappearing in the curve of PE 440% grafted. It was concluded that the graft occurs not only on the surface but also in the substrate bulk, being the PE absorption of DMAA an important factor for build up of grafted mass. (author).
Authors:
Queiroz, A A.A.; Higa, O Z; [1]  Barrak, E R; [2]  Giolito, I [3] 
  1. Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
  2. Escola Federal de Engenharia de Itajuba, MG (Brazil)
  3. Sao Paulo Univ., SP (Brazil). Inst. de Quimica
Publication Date:
Dec 31, 1991
Product Type:
Conference
Report Number:
INIS-BR-3106; CONF-9111280-
Reference Number:
SCA: 400600; PA: AIX-24:000245; SN: 93000912651
Resource Relation:
Conference: 1. Brazilian Congress on Polymers,Sao Paulo (Brazil),5-7 Nov 1991; Other Information: PBD: 1991
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; ACRYLAMIDE; GAMMA RADIATION; GRAFT POLYMERS; POLYETHYLENES; CALORIMETRY; COBALT 60; COPOLYMERIZATION; CRYSTALLIZATION; INFRARED SPECTRA; THERMAL ANALYSIS; 400600; RADIATION CHEMISTRY
OSTI ID:
10108398
Research Organizations:
Associacao Brasileira de Polimeros, Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE93608910; TRN: BR9230582000245
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[3] p.
Announcement Date:
Jun 30, 2005

Conference:

Citation Formats

Queiroz, A A.A., Higa, O Z, Barrak, E R, and Giolito, I. Dependence of crystallinity degree with induced grafting by gamma radiation of N,N{sup `}-dimethyl acrylamide; Dependencia do grau de cristalinidade com a graftizacao induzida por radiacao gama da N,N{sup `} - dimetilacrilamida em polietileno. Brazil: N. p., 1991. Web.
Queiroz, A A.A., Higa, O Z, Barrak, E R, & Giolito, I. Dependence of crystallinity degree with induced grafting by gamma radiation of N,N{sup `}-dimethyl acrylamide; Dependencia do grau de cristalinidade com a graftizacao induzida por radiacao gama da N,N{sup `} - dimetilacrilamida em polietileno. Brazil.
Queiroz, A A.A., Higa, O Z, Barrak, E R, and Giolito, I. 1991. "Dependence of crystallinity degree with induced grafting by gamma radiation of N,N{sup `}-dimethyl acrylamide; Dependencia do grau de cristalinidade com a graftizacao induzida por radiacao gama da N,N{sup `} - dimetilacrilamida em polietileno." Brazil.
@misc{etde_10108398,
title = {Dependence of crystallinity degree with induced grafting by gamma radiation of N,N{sup `}-dimethyl acrylamide; Dependencia do grau de cristalinidade com a graftizacao induzida por radiacao gama da N,N{sup `} - dimetilacrilamida em polietileno}
author = {Queiroz, A A.A., Higa, O Z, Barrak, E R, and Giolito, I}
abstractNote = {N,N` -dimethyl acrylamide (DMAA) graft copolymerization onto polyethylene films was carried out, using a organic solvent as a reaction medium and gamma rays from a {sup 60} Co source for surface activation. Thermal analysis revealed the crystallinity and the grafting inversely proportional. The DSC curves fusion peaks decreased with grafting rate increase, the peak almost disappearing in the curve of PE 440% grafted. It was concluded that the graft occurs not only on the surface but also in the substrate bulk, being the PE absorption of DMAA an important factor for build up of grafted mass. (author).}
place = {Brazil}
year = {1991}
month = {Dec}
}