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Study on the nonisothermal crystallization kinetics of ternary-monomer solid-phase graft copolymer of polypropylene

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In order to discover how the grafted side chains affect the crystallization of the graft
copolymers, the ternary-monomer solid-phase graft copolymers of polypropylene (PP; PPSM) were synthesized by solid-phase grafting of maleic anhydride, styrene and butyl acrylate onto PP. The Jeziorny and Mo methods were used to investigate the nonisothermal crystallization kinetics and polarizing microscope was used to study the crystalline morphology of PPSM. Results show that the grafted side chains not only promoted the heteronucleation of PP and reduced the size of spherulites but also hindered the growth of crystals resulting in the formation of imperfect crystallization
region in PP. Due to the hindrance of the grafted side chains on the crystallization, the
nonisothermal crystallization energy (DE) of PPSM calculated by the Kissinger equation is evidently higher than that of PP.

Keywords Polypropylene, ternary-monomer solid-phase graft copolymers, nonisothermal crystallization,
Jeziorny method, Mo method

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Informasi Detail

Judul Seri

Journal of Elastomers & Plastics

No. Panggil

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Penerbit

: SAGE Publications Ltd., 2012

Deskripsi Fisik

Journal of Elastomers & Plastics 45(1) 15–31 , 2012

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOKIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

hasnidar/agus

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