Synthesis and characterization of a fluorinated poly(imide-siloxane) copolymer: a study of physical properties and morphology

ABSTRACTIn this report, we describe our initial synthesis and characterization of mono-functional and bi-functional dibromoalkyl oligothiophenes to achieve amphiphilicity and telechelic functionality. Oligothiophenes are an important class of organic materials for opto-electronic devices and display applications. We have mono-functionalized oligothiophenes by the synthesis of a quinquethiophene bromoalkyl derivative. A bi-functional sexithiophene was derived primarily by the symmetrical coupling of terthiophene derivatives. Both were synthesized using Grignard coupling and lithiation reaction methodologies. UV-Vis, IR, NMR, MALDI-TOF-MS, and DSC confirmed the structure and physical properties of the oligomers. In addition, we have also synthesized an amphiphilic diamine derivative from the reaction of hexamethylenediamine with a bromoalkyl terthiophene derivative. Using photoluminescence, the photophysical properties of the oligomers were found to be that of typical oligothiophenes. Processing as ultrathin films for devices is currently being investigated.

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Synthesis and Physical Properties of Skutterudite Superlattices

MRS Proceedings ◽

10.1557/proc-626-z2.3 ◽

2000 ◽

Vol 626 ◽

Author(s):

Joshua R. Williams ◽

David C. Johnson ◽

Michael Kaeser ◽

Terry Tritt ◽

George Nolas ◽

...

Keyword(s):

Thermal Conductivity ◽

Physical Properties ◽

High Temperatures ◽

Synthesis And Characterization ◽

Superlattice Structure

ABSTRACTPredicted and observed reductions in thermal conductivity of materials with superlattice structure have prompted interesting research into the possibility of using these materials as higher efficiency thermoelectrics. Synthesis of superlattice materials is challenging however, as the structure itself is generally not very stable at high temperatures as it is prone to interdiffusion. Presented here is the successful synthesis and characterization of a superlattice composed of two materials with the skutterudite structure, IrSb3 and CoSb3.

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Synthesis and characterization of photocrosslinkable albumin-based hydrogels for biomedical applications

Soft Matter ◽

10.1039/d0sm00977f ◽

2020 ◽

Vol 16 (40) ◽

pp. 9242-9252

Author(s):

Darlin Lantigua ◽

Michelle A. Nguyen ◽

Xinchen Wu ◽

Sanika Suvarnapathaki ◽

Seongjin Kwon ◽

...

Keyword(s):

Physical Properties ◽

Glycidyl Methacrylate ◽

Biomedical Applications ◽

Synthesis And Characterization

Modulating the levels of glycidyl methacrylate modification in the BSAGMA prepolymer yields hydrogel products with tunable physical properties and enhanced biocompatibility, making BSAGMA hydrogels suitable for a range of biomedical applications.

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The Synthesis and Characterization of a Novel Block Copolymer Consisting of Poly(Propylene Fumarate) and Poly(Ethylene Oxide)

MRS Proceedings ◽

10.1557/proc-394-167 ◽

1995 ◽

Vol 394 ◽

Author(s):

Laura J. Suggs ◽

Richard G. Payne ◽

Edmund Y. Kao ◽

Lawrence B. Alemany ◽

Michael J. Yaszemski ◽

...

Keyword(s):

Block Copolymer ◽

Ethylene Oxide ◽

Physical Properties ◽

Synthesis And Characterization ◽

Poly Ethylene Oxide ◽

Poly Ethylene ◽

Poly Propylene

A block copolymer was developed consisting of poly(propylene fumarate) (PPF) and poly(ethylene oxide) (PEO) blocks. The former component allows the copolymer to be crosslinked, while the latter component allows the physical properties to be controlled. The compositions and segmental lengths of the two components were varied, and the copolymer was subsequently characterized.

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Synthesis and characterization of novel fluorinated thermoplastic polyurethane with high transmittance and superior physical properties

Journal of Macromolecular Science Part A ◽

10.1080/10601325.2017.1320759 ◽

2017 ◽

Vol 54 (8) ◽

pp. 516-523 ◽

Cited By ~ 3

Author(s):

Lijuan Yang ◽

Yiliang Wang ◽

Xiaohong Peng

Keyword(s):

Physical Properties ◽

Thermoplastic Polyurethane ◽

Synthesis And Characterization

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Synthesis and Properties of Uniform Polyisoprene Networks. I. Synthesis and Characterization of α,ω-Dihydroxy-Polyisoprene

Rubber Chemistry and Technology ◽

10.5254/1.3534966 ◽

1976 ◽

Vol 49 (2) ◽

pp. 303-319 ◽

Cited By ~ 41

Author(s):

M. Morton ◽

L. J. Fetters ◽

J. Inomata ◽

D. C. Rubio ◽

R. N. Young

Keyword(s):

Molecular Weight ◽

Physical Properties ◽

Soluble Fraction ◽

Synthesis And Characterization ◽

Molecular Weights ◽

Molecular Weight Distributions ◽

Weight Distributions ◽

The Subject

Abstract The results of this study are the first to show that high-1,4 linear α,ω-dihydroxypolydienes can be synthesized with (a) predictable molecular weights, (b) narrow molecular weight distributions, and (c) high functionalities. Using the functionalized polyisoprenes prepared in this work, a series of networks was prepared with a purified triisocyanate as the chain linking agent. The soluble fraction in these networks ranged from 4.6 to 1.6 per cent. The characteristics and physical properties of these networks will be the subject of a forthcoming publication.

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