Eu Canto o Corpo: O Corpo e a Música Popular Brasileira

Santana, Carla da Silva

doi:10.15600/2238-121x/comunicacoes.v1n2p27-33

Cited by 7 publications

(9 citation statements)

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“…The crystallization mechanism changes gradually from heterogeneousdominant to homogeneous-dominant, requiring a greater degree of undercooling as the dispersed domain size diminishes. 12 In blends containing 10%PP-AF blends, crystallization temperature [T c ] in the PS-AF blend is 608C, with a shoulder at 508C. PP T c in GPPS blends occurs mainly at 508C, with a shoulder at 608C.…”

Section: Crystallizationmentioning

confidence: 99%

Effect of additives on the composition dependent glass transition variation in PS/PP blends

Thirtha

Lehman

Nosker

2007

J of Applied Polymer Sci

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The effect of additives on glass transition behavior in melt processed blends of polystyrene (PS) and polypropylene (PP) was studied. Blends of additive-free polystyrene and additive-free polypropylene revealed the known effect of the PS T g increase in blend compositions where PP surrounds PS. Glass transition behavior in these blends was compared to blends prepared from additivefree PP and commercial grade PS, which contained lubricant additives. The thermal transitions of PS and PP were measured using modulated DSC. Although the behavior of low PS concentration blends was similar in both systems, the characteristics of the high PS blends differed substantially. These differences and the contrast in the PP T g behaviors were attributed to the migration of additives from the PS phase across the immiscible interface into the PP phase. Similar T g variations were observed in blends of commercial grade PS and commercial grade PP.

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Section: Crystallizationmentioning

confidence: 99%

Effect of additives on the composition dependent glass transition variation in PS/PP blends

Thirtha

Lehman

Nosker

2007

J of Applied Polymer Sci

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“…state, [2,3,9,14] additives such as compatibilizers [8,10,12,15,16] or homogeneous or heterogeneous nucleating agents. [3,6,9,10,12,13,17,18] Moreover, in some cases, the fractionated crystallization was attributed to polymorphism. [19] The fractionated crystallization is characterized by a more or less important DT c ¼ T c,n À T c,f (where T c,n is the classic non isothermal crystallization temperature, and T c,f the fractionated crystallization temperature) depending on the nature and content of the constituents (see Table 1).…”

Section: Introductionmentioning

confidence: 99%

Influence of Carbon‐Black Nanoparticles on Poly(butylene terephthalate) Fractionated Crystallization in Bicomponent Poly(butylene terephthalate)/Poly[ethylene‐co‐(ethyl acrylate)] Blends

Pillin

Feller

2006

Macro Materials & Eng

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Summary: The crystallization of the PBT minor phase in an EEA continuous matrix has been studied by DSC and SEM. When PBT is the minor phase, PBT crystallizes at a lower temperature, as expected, near Tc,f1 = 105 °C. Introducing different CB nanoparticles into the EEA continuous phase at contents increasing from 0.02 to 5 wt.‐% leads to important modifications of the PBT crystallization. A new PBT exotherm appears at Tc,f2 = 144 °C on the addition of CB, becoming really visible at Tc,f3 = 158 °C and finally moving to Tc,n = 185 °C at high content. The areas corresponding to these new peaks were found to increase to the detriment of that of the fractionated crystallization at Tc,f1 = 105 °C. Morphological studies and interfacial tension measurements were made to understand the surprising activity of the CB. Moreover, the substitution of the EEA phase with the less polar LLDPE confirmed the importance of the strong interactions developed by EEA with CB aggregates.Melting and recrystallization DSC curves for the PBT/EEA 60/40 blend.magnified imageMelting and recrystallization DSC curves for the PBT/EEA 60/40 blend.

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“…Recently, the fractionated crystallization phenomena have been discussed in several publications of our group [3][4][5][6][7][8][9][10][11][12] . Ref.…”

Section: Introductionmentioning

confidence: 99%

Nucleation and crystallization of blends of poly(propylene) and ethylene/α-olefin copolymers

Manaure

Müller²

2000

Macromol. Chem. Phys.

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Eu Canto o Corpo: O Corpo e a Música Popular Brasileira

Cited by 7 publications

References 0 publications

Effect of additives on the composition dependent glass transition variation in PS/PP blends

Effect of additives on the composition dependent glass transition variation in PS/PP blends

Influence of Carbon‐Black Nanoparticles on Poly(butylene terephthalate) Fractionated Crystallization in Bicomponent Poly(butylene terephthalate)/Poly[ethylene‐co‐(ethyl acrylate)] Blends

Nucleation and crystallization of blends of poly(propylene) and ethylene/α-olefin copolymers

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