Intercalated structure of polypropylene/in situ polymerization-modified talc composites via melt compounding

Xing Ping Zhou; Xiao Lin Xie; Zhong Zhen Yu; Yiu Wing Mai

doi:10.1016/j.polymer.2007.04.033

Intercalated structure of polypropylene/in situ polymerization-modified talc composites via melt compounding

Xing Ping Zhou, Xiao Lin Xie, Zhong Zhen Yu, Yiu Wing Mai

Research output: Journal article publication › Journal article › Academic research › peer-review

27 Citations (Scopus)

Abstract

Talc was modified with methyl methacrylate (MMA) or butyl acrylate (BA) via in situ polymerization. The talc/isotactic polypropylene (PP) composites with nano-sized intercalated structure were formed by melt compounding of PP with the modified talc. The results showed that the talc layers were partially delaminated, aligned along the flow direction, and uniformly dispersed in the PP matrix. The thickness of the PMMA-modified talc layers in the PP matrix was in the range 80-240 nm, while the PBA-modified talc was even thinner. PMMA or PBA macromolecules attached on the surface of talc layers hindered the crystallization of the PP component. Moreover, the aligned pristine talc layers promoted the orientation of the PP crystals. However, the extent of PP crystal orientation decreased in the presence of PMMA or PBA-modified talc.

Original language	English
Pages (from-to)	3555-3564
Number of pages	10
Journal	Polymer
Volume	48
Issue number	12
DOIs	https://doi.org/10.1016/j.polymer.2007.04.033
Publication status	Published - 4 Jun 2007
Externally published	Yes

Keywords

In situ polymerization
Intercalation
Talc

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

More information

10.1016/j.polymer.2007.04.033

Cite this

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title = "Intercalated structure of polypropylene/in situ polymerization-modified talc composites via melt compounding",

abstract = "Talc was modified with methyl methacrylate (MMA) or butyl acrylate (BA) via in situ polymerization. The talc/isotactic polypropylene (PP) composites with nano-sized intercalated structure were formed by melt compounding of PP with the modified talc. The results showed that the talc layers were partially delaminated, aligned along the flow direction, and uniformly dispersed in the PP matrix. The thickness of the PMMA-modified talc layers in the PP matrix was in the range 80-240 nm, while the PBA-modified talc was even thinner. PMMA or PBA macromolecules attached on the surface of talc layers hindered the crystallization of the PP component. Moreover, the aligned pristine talc layers promoted the orientation of the PP crystals. However, the extent of PP crystal orientation decreased in the presence of PMMA or PBA-modified talc.",

keywords = "In situ polymerization, Intercalation, Talc",

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AU - Zhou, Xing Ping

AU - Xie, Xiao Lin

AU - Yu, Zhong Zhen

AU - Mai, Yiu Wing

PY - 2007/6/4

Y1 - 2007/6/4

N2 - Talc was modified with methyl methacrylate (MMA) or butyl acrylate (BA) via in situ polymerization. The talc/isotactic polypropylene (PP) composites with nano-sized intercalated structure were formed by melt compounding of PP with the modified talc. The results showed that the talc layers were partially delaminated, aligned along the flow direction, and uniformly dispersed in the PP matrix. The thickness of the PMMA-modified talc layers in the PP matrix was in the range 80-240 nm, while the PBA-modified talc was even thinner. PMMA or PBA macromolecules attached on the surface of talc layers hindered the crystallization of the PP component. Moreover, the aligned pristine talc layers promoted the orientation of the PP crystals. However, the extent of PP crystal orientation decreased in the presence of PMMA or PBA-modified talc.

AB - Talc was modified with methyl methacrylate (MMA) or butyl acrylate (BA) via in situ polymerization. The talc/isotactic polypropylene (PP) composites with nano-sized intercalated structure were formed by melt compounding of PP with the modified talc. The results showed that the talc layers were partially delaminated, aligned along the flow direction, and uniformly dispersed in the PP matrix. The thickness of the PMMA-modified talc layers in the PP matrix was in the range 80-240 nm, while the PBA-modified talc was even thinner. PMMA or PBA macromolecules attached on the surface of talc layers hindered the crystallization of the PP component. Moreover, the aligned pristine talc layers promoted the orientation of the PP crystals. However, the extent of PP crystal orientation decreased in the presence of PMMA or PBA-modified talc.

KW - In situ polymerization

KW - Intercalation

KW - Talc

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DO - 10.1016/j.polymer.2007.04.033

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Intercalated structure of polypropylene/in situ polymerization-modified talc composites via melt compounding

Abstract

Keywords

ASJC Scopus subject areas

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