Synthesis and characterization of polyethylene‐g‐polystyrene as the compatibilizer for polypropylene/ Polystyrene blends

Kim, J.; Kwak, J.; Kim, D.

doi:10.1002/pat.329

Cited by 5 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kim et al 26 investigated the compatibilizing effect of polyethylene (PE)-g-polystyrene on the morphology and thermal properties of PP/PS blends. Adewole et al 27 determined the efficiency of PP-g-PS with respect to SEBS as a compatibilizer for PP/PS blends.…”

Section: Introductionmentioning

confidence: 99%

Crystallization and dynamic mechanical properties of polypropylene/polystyrene blends modified with maleic anhydride and styrene

Huang

Mai

2005

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polypropylene (PP)/polystyrene (PS) blends modified with reactive monomers, such as maleic anhydride (MAH) and styrene (St), and in situ formed PP/PS blends were prepared by melting extrusion. The crystallization and melting behavior and the dynamic mechanical properties of the PP/PS blends, including the structure of the grafted copolymer, were investigated with differential scanning calorimetry, dynamic mechanical analysis, and Fourier transform infrared. The results indicated that the addition of MAH hardly influenced the crystallization temperature of PP in the blends, but the addition of MAH and St increased the crystallization temperature of PP in its blends. The blends showed no remarkable variety for the melting temperature, but the shapes of the melting peaks were influenced by the addition of the reactive monomers. In addition, a significant increase in the storage and loss moduli of all the modified PP/PS blends was observed.

show abstract

Section: Introductionmentioning

confidence: 99%

Crystallization and dynamic mechanical properties of polypropylene/polystyrene blends modified with maleic anhydride and styrene

Huang

Mai

2005

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…A considerable amount of work on compatibilizing PP and PS has been done in the past by adding block or graft compatibilizer. [2][3][4][5][6][7][8][9][10][11][12][13] In general, the compatibilizer enhances the interfacial adhesion between the phases, provides stabilization against phase coarsening leading to finer dispersion of minor phase there by decreases the interfacial tension. Another method of compatibilization is by adding reactive compatibilizer that reacts with the component polymers during the melt mixing stage to form chemical bonds between them.…”

Section: Introductionmentioning

confidence: 99%

“…Thus PP/PS blends exhibit an unstable, coarse morphology in the molten state due to high interfacial tension derived from unfavorable interfacial interactions, accompanied by poor interfacial adhesion on solidification. A considerable amount of work on compatibilizing PP and PS has been done in the past by adding block or graft compatibilizer . In general, the compatibilizer enhances the interfacial adhesion between the phases, provides stabilization against phase coarsening leading to finer dispersion of minor phase there by decreases the interfacial tension.…”

Section: Introductionmentioning

confidence: 99%

Phase morphology, thermomechanical, and crystallization behavior of uncompatibilized and PP‐g‐MAH compatibilized polypropylene/polystyrene blends

Parameswaranpillai

Joseph

Jose

et al. 2015

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this article, we discuss the phase morphology, thermal, mechanical, and crystallization properties of uncompatibilized and compatibilized polypropylene/polystyrene (PP/PS) blends. It is observed that the Young's modulus increases, but other mechanical properties such as tensile strength, flexural strength, elongation at break, and impact strength decrease by blending PS to PP. The tensile strength and Young's modulus of PP/PS blends were compared with various theoretical models. The thermal stability, melting, and crystallization temperatures and percentage crystallinity of semicrystalline PP in the blends were marginally decreased by the addition of amorphous PS. The presence of maleic anhydride‐grafted polypropylene (compatibilizer) increases the phase stability of 90/10 and 80/20 blends by preventing the coalescence. Hence, finer and more uniform droplets of PS dispersed phases are observed. The compatibilizer induced some improvement in impact strength for the blends with PP matrix phase, however fluctuations in modulus, strength and ductility were observed with respect to the uncompatibilized blend. The thermal stability was not much affected by the addition of the compatibilizer for the PP rich blends but shows some decrease in the thermal stability of the blends, where PS forms the matrix. On the other hand, the % crystallinity was increased by the addition of compatibilizer, irrespective of the blend concentration. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42100.

show abstract

“…Donor-acceptor bonding of polar groups from two incompatible components of the mixture promotes incompleteness of phase separation, like the kinetic conditions and diffusional constraints. Targeted slowing of phase separation in such systems can be done by introducing special additives (compatibilizers), forming chemical and/or donor-acceptor bonds with the components of the mixture [2][3][4][5][6].…”

mentioning

confidence: 99%

Kinetics of formation of a linear polymer-polymer network system in the presence of 3d metal chelates

et al. 2006

View full text Add to dashboard Cite

For semi-interpenetrating polymer networks (semi-IPNs) based on an incompatible polyurethane network/linear polymethylmethacrylate pair formed in situ in the presence of 3d metal chelates, we have studied the effect of the system composition on the kinetics of formation of the components and the nature of complex formation between the metal compound and the polymer matrix. The ratio of the system components has been shown to have an effect on the selection of the macroligand in formation of complexes of the metal chelate with the polar groups of the semi-IPN, where the general character of the kinetic behavior for the formation of the network and the linear polymer is preserved.Key words: polyurethane network, linear polymethylmethacrylate, kinetics, EPR, complexes of 3d metal chelates.In recent years, scientific and practical interest has been stimulated in the problem of the compatibility of topologically connected binary polymer mixtures: interpenetrating polymer networks (IPNs), semi-interpenetrating polymer networks (semi-IPNs), mixtures of linear polymers formed in situ. Such systems consist of linear and/or networked components, not chemically bonded and interlaced with each other. They are characterized by incomplete phase separation, due to kinetic factors and diffusional constraints. The faster the reaction rate for the formation of the components of the mixture, the less the system should experience phase separation [1].Another important factor affecting the process of phase separation is specific interactions in the system between its components. Donor-acceptor bonding of polar groups from two incompatible components of the mixture promotes incompleteness of phase separation, like the kinetic conditions and diffusional constraints. Targeted slowing of phase separation in such systems can be done by introducing special additives (compatibilizers), forming chemical and/or donor-acceptor bonds with the components of the mixture [2-6].We know [7] that chelates of many metals are capable of strong specific interaction with compounds containing electron-donor groups. They act as centers for complexation ("coordination" crosslinking nodes), leading to local structurization of the polymer. By "local change in structure," we mean an increase in concentration of some functional groups of the polymer near the metal chelate. The type of functional groups of the polymer matrix forming complexes with a coordination compound with a chelate structure depends significantly on their electron-donor ability and on the electronic configuration of the central metal ion [8][9][10].Metal chelates are often catalysts for the formation of one of the components of the selected mixtures [7], and so introducing them can also have an appreciable effect on the kinetics for the formation of such systems. Bearing in mind the 0040-5760/06/4206-0357

show abstract

Synthesis and characterization of polyethylene‐g‐polystyrene as the compatibilizer for polypropylene/ Polystyrene blends

Cited by 5 publications

References 18 publications

Crystallization and dynamic mechanical properties of polypropylene/polystyrene blends modified with maleic anhydride and styrene

Crystallization and dynamic mechanical properties of polypropylene/polystyrene blends modified with maleic anhydride and styrene

Phase morphology, thermomechanical, and crystallization behavior of uncompatibilized and PP‐g‐MAH compatibilized polypropylene/polystyrene blends

Kinetics of formation of a linear polymer-polymer network system in the presence of 3d metal chelates

Contact Info

Product

Resources

About