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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
MATTOSO, L. H. C.; MALMONGE, L. F. |
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Afiliação: |
EMBRAPA-CNPDIA; USP-IQSC. |
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Título: |
Influence of the dopant on the spherulitic to fibrilar morphological transition of polyaniline blends. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996. |
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Páginas: |
p.377. |
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Idioma: |
Inglês |
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Notas: |
Ref.P3.164. |
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Conteúdo: |
Blends of poly(o-methoxyaniline)-POMA and poly(vinylidene fluoride)-PVDF exhibiting extremely low percolation threshold and great mechanical strength were prepared by casting readily in the conductive state at various compositions. The morphology of these blends depend on the dopant nature and doping state, as observed by scanning electron microscopy. For undoped of TFA doped blends the spherulitic morphology, peculiar of pure PVDF, was predominately preserved for contents as high as 25% of POMA in the blend. However, blends doped with TSA presented a transition in morphology from spherulites to fibrils (characteristic of polyanilines), for increasing POMA content. Also, blends with TSA presented better conductivity and thermal stability. The conductivity of such blends remained practically unchanged in the range of 10E-3 to 10E-4 S/cm for long periods (500h), after treatment at temperatures of 70and 90 Celsius degrees. Thermal analysis demonstrated that no mass loss was observed up to temperatures as high as the melting point of PVDF. |
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Categoria do assunto: |
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Marc: |
LEADER 01631naa a2200157 a 4500
001 1027107
005 1999-12-22
008 1996 bl uuuu u00u1 u #d
100 1 $aMATTOSO, L. H. C.
245 $aInfluence of the dopant on the spherulitic to fibrilar morphological transition of polyaniline blends.
260 $c1996
300 $ap.377.
500 $aRef.P3.164.
520 $aBlends of poly(o-methoxyaniline)-POMA and poly(vinylidene fluoride)-PVDF exhibiting extremely low percolation threshold and great mechanical strength were prepared by casting readily in the conductive state at various compositions. The morphology of these blends depend on the dopant nature and doping state, as observed by scanning electron microscopy. For undoped of TFA doped blends the spherulitic morphology, peculiar of pure PVDF, was predominately preserved for contents as high as 25% of POMA in the blend. However, blends doped with TSA presented a transition in morphology from spherulites to fibrils (characteristic of polyanilines), for increasing POMA content. Also, blends with TSA presented better conductivity and thermal stability. The conductivity of such blends remained practically unchanged in the range of 10E-3 to 10E-4 S/cm for long periods (500h), after treatment at temperatures of 70and 90 Celsius degrees. Thermal analysis demonstrated that no mass loss was observed up to temperatures as high as the melting point of PVDF.
700 1 $aMALMONGE, L. F.
773 $tIn: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Uva e Vinho. Para informações adicionais entre em contato com cnpuv.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
13/02/2017 |
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Data da última atualização: |
08/03/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MEYER, G. de A.; TALAMINI, J.; BUENO, M. E.; RUFATO, L.; KRETZSCHMAR, A. A.; RUFATO, A. de R. |
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Afiliação: |
G. de A. Meyer, UDESC; J. Talamini, Agroveterinary Science Center (CAV); M. E. BUENO, Agroveterinary Acience Center (CAV); LEO RUFATO, UDESC; A. A. KRETZSCHMAR, agroveterinary Science Center (CAV); ANDREA DE ROSSI RUFATO, CNPUV. |
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Título: |
Gradual release of growth regulators for a delay in budding and growth of 'Chardonnay' and 'Pinot Gris' in Southern Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Acta Horticulturae, n. 1115, p. 237-241, 2016. |
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DOI: |
10.17660/ActaHortic.2016.1115.35 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The wine industry in southern Brazil is affected by late frosts that cause losses in earlier varieties such as ?Chardonnay? and ?Pinot Gris?. The aim of this study was to develop a new form of application of growth regulators to delay budding of 'Chardonnay' and 'Pinot Gris'. The experiment was conducted in a commercial vineyard in Vacaria, RS, (28°32'11? S and 50°50'04? W and 972 m). The branches were pre-pruned with four buds, for the application of the products. The treatments were applied to the winter bud with concentrations (mg L- 1): naphthaleneacetic acid (NAA) 500, 1000, 1500, 2000 (sprayed) and abscisic acid sprayed 500, in paste form Splat®: 1 g applied the paste containing NAA: 500, 1000, 1500, 2000, Prohexadione calcium 75, 125, 250, 500, Trinexapac-ethyl: 200, 300, 400, 600 and untreated control. The stage of budswell and green tip was evaluated at 7 and 14 days after application. 'Pinot Gris' at 7 days delayed its phenology 14-25% in all doses of NAA with a decreasing linear trend. For application in paste form Splat® (Specialized Pheromone & Lure Application Technology) we observed different behavior for growth regulators applied at late phenological stages in different concentrations. NAA (500 and 1000), Prohexadione-calcium (125 and 500) and Trinexapac-ethyl (200 and 300) in doses mg L- 1 can be applied with Splat® to delay budding of ?Chardonnay? and ?Pinot Gris? and reduce the risks of damage in the budding by late frosts up to 7 and 10.5 days, respectively compared to control. Keywords: Vitis sp., gibberellin synthesis inhibitor, vigor MenosAbstract The wine industry in southern Brazil is affected by late frosts that cause losses in earlier varieties such as ?Chardonnay? and ?Pinot Gris?. The aim of this study was to develop a new form of application of growth regulators to delay budding of 'Chardonnay' and 'Pinot Gris'. The experiment was conducted in a commercial vineyard in Vacaria, RS, (28°32'11? S and 50°50'04? W and 972 m). The branches were pre-pruned with four buds, for the application of the products. The treatments were applied to the winter bud with concentrations (mg L- 1): naphthaleneacetic acid (NAA) 500, 1000, 1500, 2000 (sprayed) and abscisic acid sprayed 500, in paste form Splat®: 1 g applied the paste containing NAA: 500, 1000, 1500, 2000, Prohexadione calcium 75, 125, 250, 500, Trinexapac-ethyl: 200, 300, 400, 600 and untreated control. The stage of budswell and green tip was evaluated at 7 and 14 days after application. 'Pinot Gris' at 7 days delayed its phenology 14-25% in all doses of NAA with a decreasing linear trend. For application in paste form Splat® (Specialized Pheromone & Lure Application Technology) we observed different behavior for growth regulators applied at late phenological stages in different concentrations. NAA (500 and 1000), Prohexadione-calcium (125 and 500) and Trinexapac-ethyl (200 and 300) in doses mg L- 1 can be applied with Splat® to delay budding of ?Chardonnay? and ?Pinot Gris? and reduce the risks of damage in the budding by late frosts up to 7 and 10.5 days, r... Mostrar Tudo |
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Palavras-Chave: |
Chardonnay; Gibberellin synthesis inhibitor; Pinot Gris; Sul do Brasil; Vitis sp. |
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Thesagro: |
Vinho; Viticultura. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02413nam a2200265 a 4500
001 2063915
005 2019-03-08
008 2016 bl uuuu u00u1 u #d
024 7 $a10.17660/ActaHortic.2016.1115.35$2DOI
100 1 $aMEYER, G. de A.
245 $aGradual release of growth regulators for a delay in budding and growth of 'Chardonnay' and 'Pinot Gris' in Southern Brazil.$h[electronic resource]
260 $aActa Horticulturae, n. 1115, p. 237-241, 2016.$c2016
520 $aAbstract The wine industry in southern Brazil is affected by late frosts that cause losses in earlier varieties such as ?Chardonnay? and ?Pinot Gris?. The aim of this study was to develop a new form of application of growth regulators to delay budding of 'Chardonnay' and 'Pinot Gris'. The experiment was conducted in a commercial vineyard in Vacaria, RS, (28°32'11? S and 50°50'04? W and 972 m). The branches were pre-pruned with four buds, for the application of the products. The treatments were applied to the winter bud with concentrations (mg L- 1): naphthaleneacetic acid (NAA) 500, 1000, 1500, 2000 (sprayed) and abscisic acid sprayed 500, in paste form Splat®: 1 g applied the paste containing NAA: 500, 1000, 1500, 2000, Prohexadione calcium 75, 125, 250, 500, Trinexapac-ethyl: 200, 300, 400, 600 and untreated control. The stage of budswell and green tip was evaluated at 7 and 14 days after application. 'Pinot Gris' at 7 days delayed its phenology 14-25% in all doses of NAA with a decreasing linear trend. For application in paste form Splat® (Specialized Pheromone & Lure Application Technology) we observed different behavior for growth regulators applied at late phenological stages in different concentrations. NAA (500 and 1000), Prohexadione-calcium (125 and 500) and Trinexapac-ethyl (200 and 300) in doses mg L- 1 can be applied with Splat® to delay budding of ?Chardonnay? and ?Pinot Gris? and reduce the risks of damage in the budding by late frosts up to 7 and 10.5 days, respectively compared to control. Keywords: Vitis sp., gibberellin synthesis inhibitor, vigor
650 $aVinho
650 $aViticultura
653 $aChardonnay
653 $aGibberellin synthesis inhibitor
653 $aPinot Gris
653 $aSul do Brasil
653 $aVitis sp
700 1 $aTALAMINI, J.
700 1 $aBUENO, M. E.
700 1 $aRUFATO, L.
700 1 $aKRETZSCHMAR, A. A.
700 1 $aRUFATO, A. de R.
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