There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

Hydrogels for tissue engineering.

https://yunus.hacettepe.edu.tr/~damlacetin/kmu407/index_dosyalar/4.%20makale.pdf

Biodegradable polymers as biomaterials

Hydrogels in pharmaceutical formulations.

Lithium (Li) metal is an ideal anode material for rechargeable batteries due to its extremely high theoretical specific capacity (3860 mA h g−1), low density (0.59 g cm−3) and the lowest negative electrochemical potential (−3.040 V vs. the standard hydrogen electrode). Unfortunately, uncontrollable dendritic Li growth and limited Coulombic efficiency during Li deposition/stripping inherent in these batteries have prevented their practical applications over the past 40 years. With the emergence of post-Li-ion batteries, safe and efficient operation of Li metal anodes has become an enabling technology which may determine the fate of several promising candidates for the next generation energy storage systems, including rechargeable Li–air batteries, Li–S batteries, and Li metal batteries which utilize intercalation compounds as cathodes. In this paper, various factors that affect the morphology and Coulombic efficiency of Li metal anodes have been analyzed. Technologies utilized to characterize the morphology of Li deposition and the results obtained by modelling of Li dendrite growth have also been reviewed. Finally, recent development and urgent need in this field are discussed.

Lithium metal anodes for rechargeable batteries

I. SYNTHESIS AND REACTIONS OF POLYMERS. 1. The Scope of Polymer Chemistry. 2. Condensation and Other Step-Type Polymerizations. 3. Free-Radical Polymerization. 4. Ionic and Coordination Polymerization. 5. Photolytic, Radiation, and Electrolytic Polymerization. 6. Polmerization of Cyclic Organic Compounds. 7. Reactions of Synthetic Polymers. 8. Biological Polymers and Their Reactions. 9. Inorganic Elements in Polymers. II. THERMODYNAMICS AND KINETICS OF POLYMERIZATION. 10. Polymerization and Depolymerization Equilibria. 11. Kinetics of Condensation (Step-Growth) Polymerization. 12. Kinetics of Free-Radical Polymerization. 13. Kinetics of Ionic Polymerization. III. PHYSICAL CHARACTERIZATION OF POLYMERS. 14. Determination of Absolute Molecular Weights. 15. Secondary Methods for Molecular Weight Determination. 16. Thermodynamics of Solutions of High Polymers. 17. Morphology, Glass Transitions, and Polymer Crystallinity. 18. Conformational Analysis of Polymers. 19. X-Ray Diffraction by Polymers. IV. FABRICATION AND TESTING OF POLYMERS. 20. Fabrication of Polymers. 21. Testing of Polymers. V. MOLECULAR STRUCTURE, PROPERTIES, AND USES. 22. General Structure-Property Relationships. 23. Electroactive Polymers. 24. Biomedical Applications of Synthetic Polymers. VI. APPENDICES. I. Polymer Nomenclature. II. Properties and Uses of Selected Polymers. III. References to Topics not Discussed in this Book. Author Index. Subject Index.

Contemporary polymer chemistry

: The phosphazene polymer (NP(OC2H40C2H4OCH3)n, MEEP, was synthesized and amorphous solvent-free salt complexes were performed with LiSo3CF3, NaSO3CF3, Sr(SO3CF3)2, and AgSO3CF3. A material with the composition (LiSO3CF3)0.25. MEEP has a conductivity of .00008 ohm/cm at 30 C, which is much higher than corresponding poly (ethylene oxide) complexes. The phosphazene electrolytes are promising materials for ambient-temperature high energy density batteries.

Harry R. Allcock

Papers

Contemporary polymer chemistry

Polyphosphazene solid electrolytes

Synthesis of High Polymeric Alkoxy- and Aryloxyphosphonitriles

Chemistry and applications of polyphosphazenes

Recent advances in phosphazene (phosphonitrilic) chemistry