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Walba, David M

Professor

Positions

Research

research overview

  • Professor Walba's research focuses on the design and synthesis of liquid crystals, with an emphasis on chirality and polarity in liquid crystal systems. Working in collaboration with the group of Professor Noel Clark in the Department of Physics, Walba's group has made key contributions to the development of ferroelectric liquid crystals and devices, which are now found in commercial consumer electronics products. Current research in the group includes: studies directed towards developing an understanding of the helical nanofilament phase, a novel organic nanoparticle system; Design, synthesis, and characterization of materials possessing the unique ferroelectric Smectic A Polar phase; Creating new materials designed to improve understanding of the heliconical nematic phase; the design, synthesis, and characterization of new liquid crystalline organic semiconductors, research on the Dark Conglomerate liquid crystal phases, and research on the Ferroelectric Nematic phase.

keywords

  • Soft materials chemistry, Liquid Crystals, Nonlinear Optics

Publications

selected publications

Teaching

courses taught

  • CHEM 3311 - Organic Chemistry 1
    Primary Instructor - Fall 2020 / Fall 2021
    Intended primarily for nonmajors. Topics include structure and reactions of alkanes, alkenes, alkynes, alkyl halides, and aromatic molecules; nomenclature of organic compounds; stereochemistry; reaction mechanisms and dynamics. Department enforced corequisite: CHEM 3321 or CHEM 3361. Degree credit not granted for this course and CHEM 3451.
  • CHEM 3321 - Laboratory in Organic Chemistry 1
    Primary Instructor - Fall 2022
    Instruction in experimental techniques of modern organic chemistry emphasizing chemical separations and reactions of alkanes, alkenes, and aromatic compounds. Stereochemical modeling and the identification of organic unknowns by spectroscopic and chemical methods are also introduced. Department enforced corequsite: CHEM 3311 or CHEM 3451. Degree credit not granted for this course and CHEM 3361.
  • CHEM 3331 - Organic Chemistry 2
    Primary Instructor - Fall 2018 / Spring 2020 / Spring 2021 / Spring 2022
    Lect. and rec. Intended primarily for nonmajors. Topics include structure and reactions of alkyl halides, alcohols, ethers, carboxylic acids, aldehydes, ketones, and amines; introduction to the chemistry of heterocycles, carbohydrates, and amino acids; nomenclature of organic compounds; synthesis; and reaction mechanisms. Department enforced corequsite: CHEM 3341 or CHEM 3381. Degree credit not granted for this course and CHEM 3471 or BCHM 3491.
  • CHEM 3341 - Laboratory in Organic Chemistry 2
    Primary Instructor - Fall 2022
    Lab. For biochemistry and nonchemistry majors. Instruction in experimental techniques of modern organic chemistry emphasizing reactions involving alcohols, ketones, carboxylic acids, and their derivatives. Multistep syntheses are also introduced. Department enforced corequsite: CHEM 3331 or CHEM 3471 or CHEM 3491.
  • CHEM 3381 - Laboratory in Organic Chemistry 2 for Chemistry Majors
    Primary Instructor - Fall 2022
    Lab. Required course for chemistry majors. Instruction in experimental techniques of modern chemistry, emphasizing reactions involving alcohols, ketones, carboxylic acids, aromatic compounds, and their derivatives. Multistep syntheses are also introduced. Department enforced corequsite: CHEM 3331 or CHEM 3471 or CHEM 3491.
  • CHEM 3451 - Organic Chemistry for Chemistry and Biochemistry Majors
    Primary Instructor - Spring 2018 / Spring 2019
    Covers bonding, acidity, reaction mechanisms, nomenclature of organic compounds; stereochemistry; structure and reactions of aldehydes, ketones, and carboxylic acids and derivatives. Department enforced corequisite: CHEM 3361 or CHEM 3321. Degree credit not granted for this course and CHEM 3311.
  • CHEM 6901 - Research in Chemistry
    Primary Instructor - Spring 2018 / Fall 2018 / Spring 2019 / Spring 2020 / Fall 2020 / Spring 2021
    May be repeated up to 15 total credit hours.

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