Global ETD Search
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 42 for “"biobased"”.
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Biobased And Biodegradable Polymer Nanocomposites
… various noncrosslinked and crosslinked biobased and biodegradable polymer nanocomposites were fabricated and characterized. The properties of these polymer nanocomposites, and their relating mechanisms and corresponding applications were studied and discussed in depth. Chapter 1 …
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Smart Surfaces in Biobased Materials
The self-assembly blends of cellulose propionate (CP) and fluorine (F)-containing cellulose derivatives was examined on a model system of solvent cast films. The F-containing derivatives were either high molecular weight statistical cellulose esters with a number of F-containing substituent evenly …
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GREEN CATALYTIC STRATEGIES FOR THE PRODUCTION OF BIOBASED BUILDING-BLOCKS
… of the green chemistry approach. Notably, biobased lactones can be valorized into new valuable molecules such as diols and amines that are ubiquitous chemicals in today’s chemical industry. The use of simple and cheap heterogeneous copper catalysts supported on various materials, prepared …
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Synthesis and characterisation of biobased polyamides and their cellulose nanocomposites
The development of biobased polyamides has attracted growing interests in recent years due to the availability of more biobased monomers, namely dicarboxylic acids, and diamines. This doctoral thesis is focused on the preparation of wholly biobased polyamides and their nanocomposites and the …
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Drying Oils Treated by Irradiation as Coatings for Biobased Films
Biobased films are potential food packaging materials. However, their performance with respect to water and gas barrier properties is inferior to current packaging products on market. Drying oils are promising as film coatings to improve water barrier properties of protein-based films. Drying oils …
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Developing green processes for the conversion of biobased materials into pyrones
<p>The work disclosed in this dissertation implements bio-based material for new synthetic applications. The synthetic applications are corrosion inhibitors, plasticizers, and block copolymers. Triacetic Acid Lactone (TAL) is a bio-based molecule fermented from Saccharmyces cerevisiae. In the first …
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Environmental sustainability of biobased products : new assessment methods and case studies
… fuels, gave support to the renaissance of a biobased economy, where products are to be produced mainly from biomass (so-called biobased products). However, biobased products do not automatically mean environmentally sustainable products. In this sense, a proper evaluation of the environmental …
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Studies concerning the fate of atrazine and chlorpyrifos in a biobased pesticide waste disposal system
A disposal system for pesticide waste was examined for the ability to isolate waste pesticides onto lignocellulosic matrices, such as peat moss (PM) or steam-exploded wood fibers (SEW) by sorption processes, and to detoxify the pesticide during solid state fermentation (SSF) in contained …
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Design of advanced biobased photocurable formulations: from dynamic covalent network to composite scaffold for tissue engineering
L'abstract è presente nell'allegato / the abstract is in the attachment
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BIOBASED APPROACHES AT MODULATING THE INTERACTION BETWEEN LEGUMES BIOPOLYMERS AND BIOACTIVES: A PERSPECTIVE FOR THE PRODUCTION OF BAKED GOODS
Nowadays, with the increasing consumer demand for healthy foods, legumes, pseudocereals like buckwheat, and cereals like sorghum, have gained popularity as a potential component of functional foods. These crops are characterized by well-balanced nutritional profile, made by proteins, carbohydrates, …
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Optimization of heterogeneous bio-based catalysts and synthesis of inorganic equivalent for large-scale biodiesel production
… obtained there was a need to investigate other biobased materials with Lewis base potential. This led to the shift to potassium based biobased material, banana peels for optimization and use as transesterification catalyst. The banana peels were calcined at 600℃ (BP600), 800℃ (BP800), 900℃ …
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Strategic management and entrepreneurship as economic development tools
This research develops a framework of Biobased Entrepreneurial Ventures for Rural Economic Development. Rural economic development poses unique challenges and opportunities, based on available production assets, workforce trends like "brain drain," and access to industry clusters. However, certain …
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Polyurethane foams containing renewable castor oil replacement
… to the shortage of fossil resources, renewable biobased materials are studied as alternatives to petroleum. In this project, castor oil was chosen as a renewable biobased polyol in order to replace the nonrenewable petroleum-based polyols. Water-blown rigid foams were made from polyols with …
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Techno-economic analysis of furfural derivatives in integrated sugarcane biorefineries
… what consumers are typically willing to pay for biobased products (20% – 60%). In contrast, the 1G-MTHF pathway required the highest MSP among 1G scenarios,reflecting a 285% premium due to elevated hydrogen and energy demands. All 2G routesrequired MSPs exceeding US$10/kg, driven by low …
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Study of Hybrid Cellulose Nanocrystals in Polymeric Nanocomposites
Modern society's demand for biobased and sustainable materials is increasing annually. Environmental pollution related to petroleum-based plastics has motivated research into developing alternative bioplastics. These alternatives include carbohydrates such as starch, cellulose, pullulan, kefiran, …
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Structure-Property Relationships of Alicyclic Polyesters
… benefits of alicyclic monomers with sustainable biobased monomers to enhance polyester properties, thereby decoupling fossil fuels from polymer feedstock production. Accordingly, we explored naturally ubiquitous, structurally diverse, and chemically modifiable terpenes present in the resin …
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Synthesis of a renewable sourced thermotropic polyester with 2,5-furandicarboxylic acid
… environmental awareness the need to develop biobased materials grows ever more desperate. Furan derivatives sourced from hexoses provide a promising solution for replacing petrochemical based materials. One furan derivative in particular, 2,5-furandicarboxylic acid (FDCA), is especially …
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