Results 41 to 50 of about 13,676 (188)

Improving the Mechanical Properties of Biodegradable Polyhydroxyalkanoates via PHA–PHA Block‐Copolymer Synthesis

open access: yesChemistry – A European Journal, EarlyView.
Covalent linkage of a highly crystalline PHBV with a ductile P3HB4HB is shown to produce block copolymers with markedly enhanced extensibility and toughness, outperforming equivalent blends. The results demonstrate that polymer architecture, not composition alone, governs mechanical response, offering a route to biodegradable materials that combine ...
Katrin Blandine Kockler   +3 more
wiley   +1 more source

Isothermal Crystallization Kinetics and Crystalline Morphologies of Poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) Copolymers

open access: yes, 2018
In this study, the isothermal crystallization kinetics and crystalline morphology of poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) (PBAC), which refers to a copolyester containing a non-planar ring structure, were investigated by ...
Zhu, Jin   +3 more
core   +1 more source

Development of Cellulosic Bioplastic‐Based Biocomposites for Biodegradable Packaging Applications: Effect of High Acetyl Content and High Filler Loading

open access: yesPolymer Engineering &Science, EarlyView.
Schematic representation of the development of cellulosic bioplastic‐based biocomposites via reactive extrusion and injection molding, demonstrating improved oxygen and water vapor barrier properties for biodegradable packaging applications. ABSTRACT Cellulosic bioplastics have attained significant interest because of their biodegradability and ...
Reshma Krishnan   +2 more
wiley   +1 more source

Effect of Crystal Polymorphism on Elastic Modulus and Hardness of Poly(Butylene 2,6‐Naphthalate) (PBN)

open access: yesPolymer Engineering &Science, EarlyView.
The research provides insight into the mechanical behavior of the high‐performance polyester Poly(Butylene 2,6‐Naphthalate) containing different crystal polymorphs, adjustable by the conditions of melt‐crystallization. ABSTRACT The modulus of elasticity and hardness of poly(butylene 2,6‐naphthalate) (PBN) were investigated at different length scales ...
Mengxue Du   +5 more
wiley   +1 more source

Electrospun conducting polymers: recent trends and the transition towards a sustainable future

open access: yesPolymer International, EarlyView.
This review discusses the electrospinning of conducting polymers, detailing procedures, fibrous morphologies, improved properties, applications in electronics, and challenges, while outlining future directions for nanofibre‐based devices in various fields.
Xenofon Karagiorgis   +3 more
wiley   +1 more source

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

open access: yesPolymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani   +4 more
wiley   +1 more source

Rhenium-Catalyzed Deoxydehydration of Glycols by Sulfite

open access: yes, 2016
Methyltrioxorhenium and sodium perrhenate catalyze the deoxydehydration of glycols and deoxygenation of epoxides to olefins in moderate yields with sulfite as the ...
Saidi Vkuturi (2293798)   +3 more
core   +1 more source

Extruder‐based 3D printing of eco‐friendly polymers

open access: yesPolymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang   +7 more
wiley   +1 more source

Glycols Partitioning At High Pressures In Gas Processing Systems [PDF]

open access: yes, 2017
Glycols are commonly used chemicals in the gas processing industry, for example monoethylene glycol is (MEG) injected at the well head to prevent hydrate formation; glycols are also used in dehydration units to remove water from natural gas streams ...
Burgass, Rhoderick William   +3 more
core  

The H_ acidity function in ethylene and propylene glycols

open access: yes, 1971
The H_ acidity function has been determined for solutions of sodium and lithium glycollates in ethylene and propylene glycols with a series of nitrodiphenyl-amines as indicators.
N Chattanathan, C Kalidas
core   +1 more source

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