IR laser ablation of poly(vinyl chloride): Formation of monomer and deposition of nanofibres of chlorinated polyhydrocarbon

Blazevska-Gilev, Jadranka; Kupčı́k, Jaroslav; Šubrt, Ján; Bastl, Zdeněk; Vorlı́ček, V.; Galíková, Anna; Spaseska, D.; Pola, Josef

doi:10.1016/j.polymdegradstab.2005.05.017

Cited by 36 publications

(26 citation statements)

References 21 publications

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“…9 of this book for a detailed discussion of MAPLE). Indeed, the ejection of the extended liquid structures observed in the simulations [113], can be related to "nanofiber" or "necklace" polymer surface features observed in SEM images of PMMA films deposited in MAPLE [124][125][126]182], as well as in films fabricated by ablation of a polymer target involving a partial thermal decomposition of the target material into volatile species [183]. Moreover, the effect of dynamic molecular redistribution in the ejected matrix-polymer droplets, leading to the generation of transient "molecular balloons" in which polymerrich surface layers enclose the volatile matrix material, has been identified in the simulations [114,126,184] as the mechanism responsible for the formation of characteristic wrinkled polymer structures observed experimentally in films deposited by MAPLE [114,126,182].…”

Section: Phase Explosion and Laser Ablationmentioning

confidence: 86%

Atomic/Molecular-Level Simulations of Laser–Materials Interactions

Zhigilei

Lin

Ivanov

et al. 2009

Laser-Surface Interactions for New Materials Production

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Summary. Molecular/atomic-level computer modeling of laser-materials interactions is playing an increasingly important role in the investigation of complex and highly nonequilibrium processes involved in short-pulse laser processing and surface modification. This chapter provides an overview of recent progress in the development of computational methods for simulation of laser interactions with organic materials and metals. The capabilities, advantages, and limitations of the molecular dynamics simulation technique are discussed and illustrated by representative examples. The results obtained in the investigations of the laser-induced generation and accumulation of crystal defects, mechanisms of laser melting, photomechanical effects and spallation, as well as phase explosion and massive material removal from the target (ablation) are outlined and related to the irradiation conditions and properties of the target material. The implications of the computational predictions for practical applications, as well as for the theoretical description of the laser-induced processes are discussed. IntroductionShort-pulse lasers are used in a diverse range of applications, from advanced materials processing, cutting, drilling, and surface micro-and nanostructuring [1,2] to pulsed-laser deposition of thin films and coatings [3], laser surgery [4,5], and artwork restoration [6,7], and to the exploration of the conditions for inertial confinement fusion, with the world's most energetic laser system being built at the National Ignition Facility at Lawrence Livermore National Laboratory [8]. At the fundamental science level, short-pulse laser irradiation has the ability to bring material into a highly nonequilibrium state and provides a unique opportunity to probe the material behavior under extreme conditions. In particular, optical pump-probe experiments have been used to investigate transient changes in the electronic structure of the irradiated surface with high (often subpicosecond) temporal resolution [9][10][11][12][13], whereas recent advances in time-resolved X-ray and electron diffraction

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Section: Phase Explosion and Laser Ablationmentioning

confidence: 86%

Atomic/Molecular-Level Simulations of Laser–Materials Interactions

Zhigilei

Lin

Ivanov

et al. 2009

Laser-Surface Interactions for New Materials Production

View full text Add to dashboard Cite

show abstract

“…[17][18][19][20][21][22] The wavelength of radiation can be selected but it is usually chosen to be 193 or 248 nm. [17][18][19][20][21][22] The wavelength of radiation can be selected but it is usually chosen to be 193 or 248 nm.…”

Section: Lasermentioning

confidence: 99%

“…[17][18][19][20][21][22] The wavelength of radiation can be selected but it is usually chosen to be 193 or 248 nm. 19 The mechanism of degradation is similar to thermal degradation in one essential aspect which is dehydrochlorination with extension of conjugated double bonds. In addition to wavelength, a laser has a collimated, high energy beam which has the ability to instantaneously change the sample temperature which is unusual in comparison with other sources of radiation.…”

Section: Lasermentioning

confidence: 99%

Degradation by Other Forms of Radiation

Wypych¹

2015

PVC Degradation and Stabilization

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“…[237][238][239] These two observations are essential findings from measurements of positron annihilation lifetime spectroscopy. 241 • determination of polyenes, 63,137,198,[242][243][244][245] • orientation, 246,247 • crystallinity and configuration, 248,248 • depth profiling, [250][251][252][253][254][255] • miscibility and interaction. 237 It increases above glass transition temperature from 0.10 to 0.18 nm 3 .…”

Section: Positron Annihilation Lifetime Spectroscopy Pasmentioning

confidence: 99%

Analytical Methods

Wypych¹

2015

PVC Degradation and Stabilization

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IR laser ablation of poly(vinyl chloride): Formation of monomer and deposition of nanofibres of chlorinated polyhydrocarbon

Cited by 36 publications

References 21 publications

Atomic/Molecular-Level Simulations of Laser–Materials Interactions

Atomic/Molecular-Level Simulations of Laser–Materials Interactions

Degradation by Other Forms of Radiation

Analytical Methods

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