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Liu, Tianxi; Yan, Shouke; Bonnet, Martin; Lieberwirth, Ingo; Rogausch, K. D.; Petermann, J.

doi:10.1023/a:1004875514009

Cited by 58 publications

(37 citation statements)

References 17 publications

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“…At the same time, the position of Peak L shifted towards the higher temperature and the magnitude increased with the increasing crystallization temperature. This fact was true for many semicrystalline polymer as well as their copolymer, and there were many papers concerning the origin of the multiple melting peaks 27–30. Generally speaking, the multiple melting peaks may come from the formation of different crystalline structure or are related to the recrystallization during heating process in DSC scan.…”

Section: Resultsmentioning

confidence: 97%

Crystallization behavior and morphology of poly(butylene succinate) modified with rosin maleopimaric acid anhydride

Liu¹,

Li²,

Guan³

et al. 2005

J Polym Sci B Polym Phys

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The melting behavior, crystallization behavior, and morphology of PBSR, which is Poly(butylene succinate) modified with rosin maleopimaric acid anhydride (RMA), were investigated with differential scanning calorimetry (DSC) and polarized optical microscope (POM). The multiple endotherms were ascribed to the recrystallization during DSC measurement and the equilibrium melting temperature determined by the Peak L, which was associated with the fusion of the crystals grown by normal primary crystallization, was 125.9 °C. After the kinetic parameters for isothermal crystallization of PBSR were determined by Avrami equation, to make a detailed regime transition analysis, the well‐established Lauritzen–Hoffman equation was employed. The results indicated that there were two regimes, regime II and regime III, in the range of higher and lower crystallization temperature, respectively. The regime transition temperature is about 81 °C. At last, the spherulitic morphologies of PBSR after being crystallized isothermally at different temperature were observed with the help of POM. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 2694–2704, 2005

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Section: Resultsmentioning

confidence: 97%

Crystallization behavior and morphology of poly(butylene succinate) modified with rosin maleopimaric acid anhydride

Liu¹,

Li²,

Guan³

et al. 2005

J Polym Sci B Polym Phys

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“…Indeed, sPS, iPS, and PLLA possess melting points of 270 ° C, [ 33 ] 240 ° C, [ 34 ] and 180 ° C, [ 35 ] respectively. They have, however, the common property to be soluble in chloroform.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Anisotropic Submicron Particles From Semicrystalline Polymers

Staff

Lieberwirth

Landfester

et al. 2012

Macro Chemistry & Physics

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The synthesis of colloidally stable submicron particles of syndiotactic polystyrene (sPS) and isotactic polystyrene (iPS) is reported. Model particles based on poly‐L‐lactic acid (PLLA), atactic polystyrene (aPS), sPS, and iPS are prepared by the evaporation of a solvent present in miniemulsion droplets. The degree of crystallinity of the particles is found to decrease with their size, as shown by DSC and WAXS measurements. Remarkably, nonspherical particles can be formed in the dispersed state with sPS and iPS, whereas PLLA and aPS particles always display spherical morphologies.

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“…Many semicrystalline polymers and their copolymers show multiple endothermic peaks during the course of being heated 22–26. PBS and PBSR are not exceptional.…”

Section: Resultsmentioning

confidence: 99%

Melting behaviors, crystallization kinetics, and spherulitic morphologies of poly(butylene succinate) and its copolyester modified with rosin maleopimaric acid anhydride

Liu

Zhang

2006

J Polym Sci B Polym Phys

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This article investigated the melting behaviors, crystallization kinetics, and spherulitic morphologies of poly(butylene succinate) (PBS) and its copolyester (PBSR) modified with rosin maleopimaric acid anhydride, using wide‐angle X‐ray diffraction, differential scanning calorimeter (DSC), and polarized optical microscope. Subsequent DSC scans of isothermally crystallized PBS and PBSR exhibited two melting endotherms, respectively, which was due to the melt‐recrystallization process occurring during the DSC scans. The equilibrium melting point of PBSR (125.9 °C) was lower than that of PBS (139 °C). The commonly used Avrami equation was used to describe the isothermal crystallization kinetics. For nonisothermal crystallization studies, the model combining Avrami equation and Ozawa equation was employed. The result showed a consistent trend in the crystallization process. The crystallization rate was decreased, the perfection of crystals was decreased, the recrystallization was reduced, and the spherulitic morphologies were changed when the huge hydrogenated phenanthrene ring was added into the chain of PBS. The activation energy (ΔE) for the isothermal crystallization process determined by Arrhenius method was 255.9 kJ/mol for PBS and 345.7 kJ/mol for PBSR. © 2006 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 44: 900–913, 2006

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Cited by 58 publications

References 17 publications

Crystallization behavior and morphology of poly(butylene succinate) modified with rosin maleopimaric acid anhydride

Crystallization behavior and morphology of poly(butylene succinate) modified with rosin maleopimaric acid anhydride

Preparation and Characterization of Anisotropic Submicron Particles From Semicrystalline Polymers

Melting behaviors, crystallization kinetics, and spherulitic morphologies of poly(butylene succinate) and its copolyester modified with rosin maleopimaric acid anhydride

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