Polymer Journals

Polymers and Polymer Composites

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Title: PREPARATION OF TiO2/POLYACRYLIC ACID AND APPLICATION IN PHOTOCATALYTIC DEGRADATION OF METHYL ORANGE
Page Range: p.195-203
Author(s): Luo S; Zhu H; Wang F; Xin F; Yin X
File size: 311K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 17
Issue No: No.4

Abstract
The synthesis of nanocomposites of poly(acrylic acid) with various proportions of titanium dioxide nanoparticles by aqueous solution polymerisation of acrylic acid and potassium acrylate in the presence of N,N'-methylene bisacrylamide as crosslinking agent, potassium persulphate as initiator and the nanoparticles, is described. The products were characterised by SEM, XRD, FTIR and UV-visible spectroscopy, and the effects of reaction conditions including titanium dioxide content, crosslinker amount, degree of neutralisation and monomer concentration on catalytic efficiency in the photocatalytic degradation of methyl orange were investigated. 24 refs.

Title: PRESENT STATUS AND KEY CHALLENGES OF CARBON NANOTUBES REINFORCED POLYOLEFINS: A REVIEW ON NANOCOMPOSITES MANUFACTURING AND PERFORMANCE ISSUES
Page Range: p.205-245
Author(s): Prashantha K; Soulestin J; Lacrampe M F; Krawczak P
File size: 806K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 17
Issue No: No.4

Abstract
A comprehensive review of the preparation, compounding, properties and applications of nanocomposites of polyolefins reinforced with carbon nanotubes is presented. The processing, dispersion and orientation of nanotubes, as well as the characterisation of the physical and mechanical properties of carbon nanotube-filled polyolefins are discussed, and the scientific principles and mechanisms relating to methods of manufacturing are highlighted, with an outlook towards commercial applications. 300 refs.

Title: TEMPERATURE DEPENDENT MECHANICAL CHARACTERISATION OF STYRENE-ACRYLONITRILE
Page Range: p.247-252
Author(s): Solakoglu I; Ataoglu S; Gulluoglu A N; Kadioglu N
File size: 216K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 17
Issue No: No.4

Abstract
The temperature dependent mechanical properties of cast sheets of poly(styrene-co-acrylonitrile) (SAN), a random amorphous linear copolymer, were investigated experimentally by DSC (glass transition temperature), creep, tensile and microhardness testing at different temperatures and different loadings. The creep response of SAN was also evaluated and the steady-state strain rate dependence on temperature and stress level is discussed in terms of a power law expression. 14 refs.

Title: FLEXURAL CHARACTERISTICS OF CONCRETE BEAMS REINFORCED WITH A NEW TYPE OF GFRP BAR
Page Range: p.253-264
Author(s): Oh H; Moon D Y; Zi G
File size: 789K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 17
Issue No: No.4

Abstract
The fabrication of a new type of E-glass fibre-reinforced epoxy resin (GFRP) rebar by a combination of pultrusion and press moulding to produce surface deformations similar to those of steel rebars, and their characterisation by SEM, tensile strength and elastic modulus measurements, is described. The flexural properties of concrete beams reinforced with the new rebar with various reinforcement ratios and depths of concrete cover were investigated by monotonic loading up to failure and the results are discussed in comparison with those obtained for concrete beams reinforced with commercial GFRP rebars in terms of failure mode, moment-curvature, flexural capacity, load-deflection and crack width. 19 refs.

Title: DEGRADATION OF POLYPROPYLENE AND POLYPROP/STARCH BLENDS
Page Range: p.265-272
Author(s): Meligi G A; El-Rehim H A A; Hegazy E; Ali A M; Rabie A M
File size: 232K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 17
Issue No: No.4

Abstract
The photodegradation of blends of starch and isotactic polypropylene (iPP) under natural and artificial UV irradiation were investigated by tensile strength, elongation, FTIR, TGA, DSC and XRD measurements as a function of irradiation time. The results are discussed in terms of the reduction in mechanical properties and molecular weight of iPP, and of biodegradation of waste iPP. 23 refs.

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