Typology of Polymers

Krevelen, D.W. Van

doi:10.1016/b978-0-08-054819-7.00002-9

Cited by 200 publications

(318 citation statements)

References 45 publications

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“…To estimate the possible influence of modifier molecules in the amorphous phase on the value of s e , the values of liquid surface energy, s LV of amorphous phase of polypropylene, wax and nonadecane have been compared. The value of s LV determined for isotactic polypropylene in the molten state is 29.6 mJ/m 2 [49]. In the case of modifiers the following values of s LV have been found: 29.3 mJ/m 2 for nonadecane [50] (the value was obtained by an extrapolation of the data available for hydrocarbons with lower number of C atoms in the chain) and 30.0 mJ/m 2 for paraffin wax [51].…”

Section: Samplementioning

confidence: 99%

Physical state of the amorphous phase of polypropylene-influence on thermo-mechanical properties

Krajenta

Różański

2015

Polymer

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Section: Samplementioning

confidence: 99%

Physical state of the amorphous phase of polypropylene-influence on thermo-mechanical properties

Krajenta

Różański

2015

Polymer

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“…The spectra of BP, BT, and VP showed similar peak patterns except for a low wave number region. The physical and mechanical properties of polyamide depend on the molecule structure 8) . The effects of surface treatments varied among the polyamides examined, probably due to their mechanical properties, which will be evaluated in a future study.…”

Section: Discussionmentioning

confidence: 99%

“…In particular, the bonding of polyamide using the chemical-cured resin was reported to be very difficult [5][6][7] . There are various types of polyamides with different molecule structures 3,8) , and they are difficult to dissolve in organic solvents. Therefore, the bonding efficiency of polyamide using chemical-cured resin may not be uniform.…”

Section: Introductionmentioning

confidence: 99%

Effect of ultraviolet light irradiation and sandblasting treatment on bond strengths between polyamide and chemical-cured resin

et al. 2014

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The aim of this study was to evaluate the effects of ultraviolet light (UV) irradiation and sandblasting treatment on the shear bond strength between polyamide and chemical-cured resin. Three types of commercial polyamides were treated using UV irradiation, sandblasting treatment, and a combining sandblasting and UV irradiation. The shear bond strength was measured and analyzed using the Kruskal-Wallis test (α=0.05). Comparing shear bond strengths without surface treatment, from 4.1 to 5.7 MPa, the UV irradiation significantly increased the shear bond strengths except for Valplast, whose shear bond strengths ranged from 5.2 to 9.3 MPa. The sandblasting treatment also significantly increased the shear bond strengths (8.0 to 11.4 MPa). The combining sandblasting and UV irradiation significantly increased the shear bond strengths (15.2 to 18.3 MPa) comparing without surface treatment. This combined treatment was considered the most effective at improving the shear bond strength between polyamide and chemical-cured resin.

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“…However, to model the grating growth and to draw conclusions on the interplay of underlying mechanisms, such as polymerization and diffusion, the time evolution of the refractive index contrast Δn(t) is needed. Potential factors, responsible for the change of the refractive index in the course of polymerization, are molecular polarizability, density and molar mass [28].…”

Section: Real-time Observation Of Grating Formationmentioning

confidence: 99%

Volume Holography: Novel Materials, Methods and Applications

Sabel¹,

Lensen²

2017

Holographic Materials and Optical Systems

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This chapter aims to establish a link between material compositions, analytical methods and advanced applications for volume holography. It provides basics on volume holography, serving as a compendium on volume holographic grating formation, specific material requirements for volume holography and diffractive properties of the different types of volume holographic gratings. The particular significance of three-dimensional optical structuring for the final optical functionality is highlighted. In this context, the interrelation between function and structure of volume holograms is investigated with view to research on and development of novel materials, methods and applications. Particular emphasis will be placed on analytical methods, assuming that they provide access for a deeper understanding of volume holographic grating formation, which appears to be prerequisite for the design of novel material systems for advanced applications.

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Typology of Polymers

Cited by 200 publications

References 45 publications

Physical state of the amorphous phase of polypropylene-influence on thermo-mechanical properties

Physical state of the amorphous phase of polypropylene-influence on thermo-mechanical properties

Effect of ultraviolet light irradiation and sandblasting treatment on bond strengths between polyamide and chemical-cured resin

Volume Holography: Novel Materials, Methods and Applications

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