Semiconducting Polymers: Poly(thiophenes)

Magurudeniya, Harsha D.; Huang, Peishen; Gunathilake, Samodha S.; Rainbolt, Elizabeth A.; Stefan, Mihaela C.

doi:10.1002/0471440264.pst628

Cited by 5 publications

(5 citation statements)

References 192 publications

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“…This was done in a mechanical mixer at a temperature of 150°C. The polymers were mixed in weight proportions of 2-3-5% vinyl groups, with homogeneous mixtures obtained by adding portions with a 10-minute interval between them and other components [11][12][13] .…”

Section: Rubber Samples Preparationmentioning

confidence: 99%

Study of vinyl group effect on thermal and mechanical properties of some polymers and silicone rubber

ImadRezakalla,

Gennadyevech1Dyachenko

2024

Appl. Chem. Eng.

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The research presented in this article has focused on the identification of the potential use of two methods: weight change analysis and swelling-weight balancing, to study polymer and silicone rubber samples at consistent temperatures for an extended period. This ensures the stability of these materials for future industrial applications. Throughout the research, it was determined that these methods allow for simultaneous observation of various processes to which the samples were exposed, including degradation and thermal oxidation. The analysis of the obtained results has indicated that a sample made of methylvinylsilicon rubber containing 2% vinyl by weight exhibited superior properties compared to other samples. These properties include a decrease in the rate of rubber chain bond breakage, resistance to various solvents, and improved mechanical characteristics.

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Section: Rubber Samples Preparationmentioning

confidence: 99%

Study of vinyl group effect on thermal and mechanical properties of some polymers and silicone rubber

ImadRezakalla,

Gennadyevech1Dyachenko

2024

Appl. Chem. Eng.

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“…The mixing of polymers such as polyethylene and natural rubber is characterized by thermodynamic instability of the system, due to significant differences between the structural organization and properties of semi-crystalline PE and amorphous NR. The mixing of such components affects the kinetics of the crystallization processes of the semicrystalline component [56], which largely determines the properties of the composite. This approach is used in hardening, to control the phase structure, to increase the impact strength and for directed modification of polymer composites [57].…”

Section: Distribution Of Natural Rubber Particles In the Polyethylene...mentioning

confidence: 99%

Biodegradable Polymer Materials Based on Polyethylene and Natural Rubber: Acquiring, Investigation, Properties

et al. 2022

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The growing amount of synthetic polymeric materials is a great environmental problem that has to be solved as soon as possible. The main factor aggravating this problem is the abundance of products made from traditional synthetic polymer, such as packaging materials, cases, containers and other equipment with a short period of use, which quickly turns into polymer waste that pollutes the ecosystem for decades. In this paper, we consider the possibility of solving this problem by the development of biodegradable compositions based on polyolefins and elastomers. The addition of a natural component (natural rubber) to the matrix of the synthetic polymeric (polyethylene) leads to the significant changes in structure and properties of the material. Different aspects of mixing semicrystalline and amorphous polymers are discussed in the article. It was shown that addition of 10–50% wt. of the elastomers to the synthetic polymer increases wettability of the material, slightly reduces the mechanical properties, significantly affects the supramolecular structure of the crystalline phase of polyethylene and initiates microbiological degradation. In particular, in this work, the acquisition, structure and properties of biodegradable binary composites based on low-density polyethylene (LDPE) and natural rubber (NR) were studied. It has been shown that such compositions are biodegradable in soil under standard conditions.

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“…[246] A current review highlighted the evolution of the synthetic methods utilized for the synthesis of regioregular P3HT homopolymer and block copolymers, their charge transport properties, the effects of regioregularity, molecular weight, processing techniques on the charge transport properties. [247] The controlled end-group functionalization and well-defined synthesis of P3HT is feasible via Kumada catalyzed transfer polycondensation developed in the last years. [246][247][248][249][250][251] This paved the way towards the synthesis of well-defined block copolymers with P3HT blocks.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…[247] The controlled end-group functionalization and well-defined synthesis of P3HT is feasible via Kumada catalyzed transfer polycondensation developed in the last years. [246][247][248][249][250][251] This paved the way towards the synthesis of well-defined block copolymers with P3HT blocks. Although P3HT has a decreased flexibility in the backbone due to conjugation and it is often termed as a rod-like component, its block copolymers have been shown to form the typical cylindrical and lamellar morphologies wellknown from coil-coil diblock copolymers.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…Also more special block copolymer with P3HT block were reported as for example azobenzene liquid crystalline mesogen, 6‐(4‐((4‐methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate (MMAZO) incorporated into a block copolymer with P3HT . A current review highlighted the evolution of the synthetic methods utilized for the synthesis of regioregular P3HT homopolymer and block copolymers, their charge transport properties, the effects of regioregularity, molecular weight, processing techniques on the charge transport properties . The controlled end‐group functionalization and well‐defined synthesis of P3HT is feasible via Kumada catalyzed transfer polycondensation developed in the last years .…”

Section: Semiconductor Hybrid Blends Using Semiconductive Block Copolmentioning

confidence: 99%

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Hybrid Photovoltaics – from Fundamentals towards Application

Müller‐Buschbaum

Thelakkat

Fässler

et al. 2017

Advanced Energy Materials

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In hybrid photovoltaics, an organic and an inorganic semiconductor are combined in the active layer, with the advantages of both material classes in a single device. The organic component contributes towards the possibility for wet chemical device preparation with potentially low costs in combination with achieving flexible devices. From the inorganic component an increase in stability, as well as superior opto‐electronic properties, is added. Given the large diversity of organic and inorganic semiconductors, a large number of possible realizations of hybrid solar cells emerge. In the present review, we limit to hybrid solar cells which combine conjugated polymers with inorganic materials such as titanium dioxide, zinc oxide, silicon, germanium and quantum dots to keep focused. Particular emphasis is put on different routes to tailor nanostructures, such as the use of semiconductor block copolymers. The inorganic component is either synthesized directly in one of the blocks or added as a pre‐synthesized nanomaterial to form the hybrid material. Alternatively, the block copolymer is used as a structure‐directing template in a sol–gel synthesis approach to have tailored inorganic nanostructures, which are back‐filled with the organic component to fabricate the hybrid material. Hybrid solar cells based on crystalline Si are discussed for comparison.

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Semiconducting Polymers: Poly(thiophenes)

Cited by 5 publications

References 192 publications

Study of vinyl group effect on thermal and mechanical properties of some polymers and silicone rubber

Study of vinyl group effect on thermal and mechanical properties of some polymers and silicone rubber

Biodegradable Polymer Materials Based on Polyethylene and Natural Rubber: Acquiring, Investigation, Properties

Hybrid Photovoltaics – from Fundamentals towards Application

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