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Book
Advances in Plasma Processes for Polymers
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Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Polymerized nanoparticles and nanofibers can be prepared using various processes, such as chemical synthesis, the electrochemical method, electrospinning, ultrasonic irradiation, hard and soft templates, seeding polymerization, interfacial polymerization, and plasma polymerization. Among these processes, plasma polymerization and aerosol-through-plasma (A-T-P) processes have versatile advantages, especially due to them being “dry", for the deposition of plasma polymer films and carbon-based materials with functional properties suitable for a wide range of applications, such as electronic and optical devices, protective coatings, and biomedical materials. Furthermore, it is well known that plasma polymers are highly cross-linked, pinhole free, branched, insoluble, and adhere well to most substrates. In order to synthesize the polymer films using the plasma processes, therefore, it is very important to increase the density and electron temperature of plasma during plasma polymerization.

Keywords

Technology: general issues --- Chemical engineering --- polytetrafluoroethylene --- fluorine depletion --- hydrogen plasma --- VUV radiation --- surface modification --- hydrophilic --- polyamide --- gaseous plasma --- water contact angle --- XPS --- polyamide membranes --- magnetron sputtering --- TiO2 + AgO coatings --- low-pressure plasma --- plasma treatment --- polyaniline (PANI) --- conductive polymer --- plasma polymerization --- aniline --- atmospheric pressure plasma reactor (AP plasma reactor) --- in-situ iodine (I2) doping --- atmospheric pressure plasma --- filler --- polylactic acid --- polymer composite --- polyethylene --- corona discharge --- polyethylene glycol --- adhesion --- polymer --- biomedical applications --- additive manufacturing --- toluidine blue method --- enzymatic degradation --- microwave discharge --- discharges in liquids --- microwave discharge in liquid hydrocarbons --- methods of generation --- plasma properties --- gas products --- solid products --- plasma diagnostics --- plasma modeling --- room temperature growth --- porous polythiophene --- conducting polymer --- NO2 --- gas sensors --- ion beam sputtering --- continuum equation --- plasma --- sublimation --- PA6.6 --- cold plasma --- electrical discharges --- voltage multiplier --- polymers --- oleofobization --- paper --- cellulose --- HMDSO --- atmospheric-pressure plasma --- solution plasma --- polymer films --- nanoparticles --- surface wettability --- graphene oxide --- cyclic olefin copolymer --- GO reduction --- titanium (Ti) alloys --- low-temperature plasma polymerization --- plasma-fluorocarbon-polymer --- anti-adhesive surface --- inflammatory/immunological response --- intramuscularly implantation --- atmospheric pressure plasma jet --- dielectric barrier discharge --- piezoelectric direct discharge --- surface free energy --- test ink --- surface activation --- allyl-substituted cyclic carbonate --- free-radical polymerization --- plasma process --- plasma polymerisation --- plasma deposition --- poly(lactic acid) --- PLA --- ascorbic acid --- fumaric acid --- grafting --- wettability --- BOPP foil --- DCSBD --- VDBD --- ageing --- surface functionalization --- atmospheric pressure plasmas --- glow-like discharge --- single pin electrode --- PANI thin film


Book
Advances in Plasma Processes for Polymers
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Polymerized nanoparticles and nanofibers can be prepared using various processes, such as chemical synthesis, the electrochemical method, electrospinning, ultrasonic irradiation, hard and soft templates, seeding polymerization, interfacial polymerization, and plasma polymerization. Among these processes, plasma polymerization and aerosol-through-plasma (A-T-P) processes have versatile advantages, especially due to them being “dry", for the deposition of plasma polymer films and carbon-based materials with functional properties suitable for a wide range of applications, such as electronic and optical devices, protective coatings, and biomedical materials. Furthermore, it is well known that plasma polymers are highly cross-linked, pinhole free, branched, insoluble, and adhere well to most substrates. In order to synthesize the polymer films using the plasma processes, therefore, it is very important to increase the density and electron temperature of plasma during plasma polymerization.

Keywords

Technology: general issues --- Chemical engineering --- polytetrafluoroethylene --- fluorine depletion --- hydrogen plasma --- VUV radiation --- surface modification --- hydrophilic --- polyamide --- gaseous plasma --- water contact angle --- XPS --- polyamide membranes --- magnetron sputtering --- TiO2 + AgO coatings --- low-pressure plasma --- plasma treatment --- polyaniline (PANI) --- conductive polymer --- plasma polymerization --- aniline --- atmospheric pressure plasma reactor (AP plasma reactor) --- in-situ iodine (I2) doping --- atmospheric pressure plasma --- filler --- polylactic acid --- polymer composite --- polyethylene --- corona discharge --- polyethylene glycol --- adhesion --- polymer --- biomedical applications --- additive manufacturing --- toluidine blue method --- enzymatic degradation --- microwave discharge --- discharges in liquids --- microwave discharge in liquid hydrocarbons --- methods of generation --- plasma properties --- gas products --- solid products --- plasma diagnostics --- plasma modeling --- room temperature growth --- porous polythiophene --- conducting polymer --- NO2 --- gas sensors --- ion beam sputtering --- continuum equation --- plasma --- sublimation --- PA6.6 --- cold plasma --- electrical discharges --- voltage multiplier --- polymers --- oleofobization --- paper --- cellulose --- HMDSO --- atmospheric-pressure plasma --- solution plasma --- polymer films --- nanoparticles --- surface wettability --- graphene oxide --- cyclic olefin copolymer --- GO reduction --- titanium (Ti) alloys --- low-temperature plasma polymerization --- plasma-fluorocarbon-polymer --- anti-adhesive surface --- inflammatory/immunological response --- intramuscularly implantation --- atmospheric pressure plasma jet --- dielectric barrier discharge --- piezoelectric direct discharge --- surface free energy --- test ink --- surface activation --- allyl-substituted cyclic carbonate --- free-radical polymerization --- plasma process --- plasma polymerisation --- plasma deposition --- poly(lactic acid) --- PLA --- ascorbic acid --- fumaric acid --- grafting --- wettability --- BOPP foil --- DCSBD --- VDBD --- ageing --- surface functionalization --- atmospheric pressure plasmas --- glow-like discharge --- single pin electrode --- PANI thin film


Book
Advances in Plasma Processes for Polymers
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

Polymerized nanoparticles and nanofibers can be prepared using various processes, such as chemical synthesis, the electrochemical method, electrospinning, ultrasonic irradiation, hard and soft templates, seeding polymerization, interfacial polymerization, and plasma polymerization. Among these processes, plasma polymerization and aerosol-through-plasma (A-T-P) processes have versatile advantages, especially due to them being “dry", for the deposition of plasma polymer films and carbon-based materials with functional properties suitable for a wide range of applications, such as electronic and optical devices, protective coatings, and biomedical materials. Furthermore, it is well known that plasma polymers are highly cross-linked, pinhole free, branched, insoluble, and adhere well to most substrates. In order to synthesize the polymer films using the plasma processes, therefore, it is very important to increase the density and electron temperature of plasma during plasma polymerization.

Keywords

polytetrafluoroethylene --- fluorine depletion --- hydrogen plasma --- VUV radiation --- surface modification --- hydrophilic --- polyamide --- gaseous plasma --- water contact angle --- XPS --- polyamide membranes --- magnetron sputtering --- TiO2 + AgO coatings --- low-pressure plasma --- plasma treatment --- polyaniline (PANI) --- conductive polymer --- plasma polymerization --- aniline --- atmospheric pressure plasma reactor (AP plasma reactor) --- in-situ iodine (I2) doping --- atmospheric pressure plasma --- filler --- polylactic acid --- polymer composite --- polyethylene --- corona discharge --- polyethylene glycol --- adhesion --- polymer --- biomedical applications --- additive manufacturing --- toluidine blue method --- enzymatic degradation --- microwave discharge --- discharges in liquids --- microwave discharge in liquid hydrocarbons --- methods of generation --- plasma properties --- gas products --- solid products --- plasma diagnostics --- plasma modeling --- room temperature growth --- porous polythiophene --- conducting polymer --- NO2 --- gas sensors --- ion beam sputtering --- continuum equation --- plasma --- sublimation --- PA6.6 --- cold plasma --- electrical discharges --- voltage multiplier --- polymers --- oleofobization --- paper --- cellulose --- HMDSO --- atmospheric-pressure plasma --- solution plasma --- polymer films --- nanoparticles --- surface wettability --- graphene oxide --- cyclic olefin copolymer --- GO reduction --- titanium (Ti) alloys --- low-temperature plasma polymerization --- plasma-fluorocarbon-polymer --- anti-adhesive surface --- inflammatory/immunological response --- intramuscularly implantation --- atmospheric pressure plasma jet --- dielectric barrier discharge --- piezoelectric direct discharge --- surface free energy --- test ink --- surface activation --- allyl-substituted cyclic carbonate --- free-radical polymerization --- plasma process --- plasma polymerisation --- plasma deposition --- poly(lactic acid) --- PLA --- ascorbic acid --- fumaric acid --- grafting --- wettability --- BOPP foil --- DCSBD --- VDBD --- ageing --- surface functionalization --- atmospheric pressure plasmas --- glow-like discharge --- single pin electrode --- PANI thin film


Book
Possible Scenarios for Homochirality on Earth
Author:
ISBN: 3039217232 3039217224 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world.

Keywords

supramolecular assembly --- weak neutral current --- homochiral and heterochiral aggregates --- vortex --- neutrinos --- Soai reaction --- Viedma ripening effect --- nucleus–molecular coupling --- absolute asymmetric synthesis --- circular dichroism --- enantiomer self-disproportionation --- magmatic flow --- metal-organic framework --- Z0 boson --- hidden chirality --- gravitation --- SDE --- etch figures --- replicators --- supramolecular chirality --- deracemization --- assemblies --- spin polarized electrons --- super-high-velocity impact --- homochirality --- chirogenesis --- heat capacity --- tunneling --- prebiotic --- Salam hypothesis --- tilt-chirality --- self-assembly --- racemic field --- triethylenediamine (DABCO) molecules --- environmental chirality --- bioorganic homochirality --- polymer --- enantioselective reaction --- two-fold helix --- origin of life --- biological homochirality --- parity violation in the weak interaction --- amino acids --- multi-point approximation --- magnetism --- C1- and C2-symmetric catalysts --- spin-polarized lepton --- lipid --- chiral field (memory) --- Wallach’s rule --- asymmetric autocatalysis --- plasma reactor --- circularly polarized photon --- asymmetric reaction --- racemate --- enantiomorphism --- symmetry breaking --- ?-strand --- chirality --- circularly polarized light --- circularly polarized luminescence --- autocatalysis --- amino acid handedness --- asymmetric synthesis --- precision measurement --- nepheline --- chiral separation --- parity violation --- achiral stationary phase --- genesis of life chirality --- high dimensional chirality

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