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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 89 for “"Acrylonitrile"”.
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Rotational Molding of Acrylonitrile-Butadiene-Styrene Polymers and Blends
<p>The development of acrylonitrile-butadiene-styrene (ABS) resins for use in rotational molding would provide a medium performance material, thus opening doors to new markets for the rotational molding industry. Unfortunately, ABS resins have shown serious problems during the rotational molding …
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A Study of Thiol Based Bound Antioxidants in Acrylonitrile-Butadiene Rubbers
… (PPPT) have been successfully bound to acrylonitrile-butadiene rubber (NBR) by a free radical process in the latex and during processing. Under optimum conditions, latex masterbatches and solid masterbatches of the bound thiol antioxidants were prepared and were used as additives for …
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The Stabilization of Acrylonitrile-Butadiene-Styrene Copolymers Against Heat and Light
The thermal and photo-oxidative stability of acrylonitrilebutadiene- styrene copolymer (ABS) has been investigated in the presence of various stabilizers representative of two different mechanisms of antioxidant action; chain breaking and preventive. When present in the polymer as additives bis …
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Mechanisms of acrylonitrile-induced morphological transformation in Syrian Hamster Embryo (SHE) cells
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Induction of oxidative stress in rat brain and rat astrocytes by acrylonitrile (ACN)
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Ammoxidation of propene over iron promoted bismuth molybdate for the production of acrylonitrile
… ammoxidation of propene for the formation of an acrylonitrile is to be investigated.
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Development of a Acrylonitrile Butadiene Styrene toner for an electrophotography based additive manufacturing process
Research in to utilising electrophotography for Additive Manufacturing has been under investigation for over a decade. However, the research has been primarily focused on resolving the height limitations caused by charge accumulation and also the development of toners from tough engineering …
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Synthesis and Characterization of Solution and Melt Processible Poly(acrylonitrile-co-methylacrylate) statistical copolymers
Polyacrylonitrile (PAN) and its copolymers are used in a wide variety of applications ranging from textiles to purification membranes, packaging material and carbon fiber precursors. High performance polyacrylonitrile copolymer fiber is the most dominant precursor for carbon fibers. Synthesis of …
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The effect of a direct current electric field upon acrylonitrile polymerizations at low temperatures
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1960
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Determination of Reactivity Ratios for Acrylonitrile/Methyl Acrylate Radical Copolymerization Via Nonlinear Methodologies Using Real Time FTIR
… free radical initiated copolymerization of acrylonitrile and methyl acrylate were measured by NMR on isolated, low conversion copolymers and by real time in situ FTIR. The system utilized azobisisobutyronitrile (AIBN) initiator in dimethyl formamide (DMF) at 62°. The FTIR technique allowed …
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Melt Processable Poly(acrylonitrile)-based Precursors for Carbon Fiber Production and Advanced Polymeric Membranes for Gas Separation and Water Electrolysis Applications
… feasibility of achieving melt-processable polyacrylonitrile copolymer system precursors for producing high modulus carbon fibers is detailed. High molecular weight poly(acrylonitrile-ran-methyl acrylate) (PAN-MA) copolymer with high acrylonitrile content were mixed with various water containing …
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Synthesis, Characterization, Processing and Physical Behavior of Melt-Processible Acrylonitrile Co- and Terpolymers for Carbon Fibers: Effect of Synthetic Variables on Copolymer Synthesis
… route and has a typical composition of acrylonitrile/ methyl acrylate/acryloyl benzophenone in the molar ratio of 85/14/1. This thesis describes a systematic variation of the polymerization variables in the emulsion polymerization which may further enhance the system. In particular, the …
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Copolymerizing Acrylonitrile and Methyl Acrylate by RAFT for Melt Processing Applications: A Synthetic Investigation of the Effects of Chain Transfer Agent, Initiator, Temperature, and Solvent
Statistical copolymers of acrylonitrile (AN) and methyl acrylate (MA) were successfully prepared and characterized using reversible addition-fragmentation chain transfer (RAFT) copolymerization. A typical copolymer was charged with 15 wt. % MA content. This thesis describes a systematic variation …
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Dye sensitized photooxidation of toxic organic wastewaters
… ortho-, meta-, and para-cresol, carbofuran and acrylonitrile. Significant reductions were found when aqueous solutions of the cresol isomers and carbofuran were illuminated and aerated in the presence of methylene blue. An average of 78% reduction of cresol was observed in seven hours. …
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Cyanoethylation of 2-Naphthol. Influence of Solvent and Catalyst on the Course of Reaction
… on the course of the reaction of 2-naphthol with acrylonitrile; | (2) to determine whether a relationship between reaction conditions and product distribution could be established.
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Strength Development at Incompatible Polymer Interfaces
… polystyrene-co-acrylonitrile-polymethylmethacrylate, and polystyrene-co-acrylonitrile-polycarbonate. For each pair, the weld strength, as measured by G$\sb{\rm IC}$, attained a constant value which increased with welding temperature. While only five to ten percent …
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Aerogels and films through free radical polymerization
… and, (b) we engage a carbonizable crosslinker (acrylonitrile), whereas the resulting polymer coating, polyacrylonitrile (PAN), can react carbothermally with the underlying silica backbone to yield monolithic, highly porous (>70% v/v) silicon carbide (SiC) suitable as a high temperature catalyst …
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