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CHARACTERIZATION OF COLD DRAWN POLY L LACTIC ACID BY RAMAN SPECTROSCOPY AND RAMAN HYPERSPECTRAL IMAGING

Muttavarapu, Ramya Sudha
http://rave.ohiolink.edu/etdc/view?acc_num=csu1427797659

Abstract Details

2015, Master of Science in Chemistry, Cleveland State University, College of Sciences and Health Professions.
Artificial modulation of bone growth and repair processes is an important area of current research. Studies have established that the micro mechanical and bulk physical properties of a polymer implant influence its performance behavior and degradation patterns in the body. One important parameter for the class of polymers known as polylactides is the degree of crystalline character. Hence, studying the bulk and micro crystalline composition of an important polymer implant, Poly-L-Lactic acid is the objective of this study. Poly-L-Lactic acid has elastic properties that can be tailored to resemble natural bone and its reaction to mechanical stress. Varying degrees of crystallinity have been induced in the polymer by stretching it to different draw ratios. Differential scanning calorimetry has been used to establish the bulk crystalline character of PLLA and to study and characterize functional group orientation changes induced at different draw ratios. The data from these investigations has been integrated to explain how the functional groups and their orientations with respect to draw axis and polarization axis impart unique characteristics to the Raman spectra of samples drawn to different draw ratios.
John Turner, II, PhD (Committee Chair)
Bin Su, PhD (Committee Member)
Amin Zhou, PhD (Committee Member)
69 p.
Analytical Chemistry; Chemistry

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Citations

  • Muttavarapu, R. S. (2015). CHARACTERIZATION OF COLD DRAWN POLY L LACTIC ACID BY RAMAN SPECTROSCOPY AND RAMAN HYPERSPECTRAL IMAGING [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1427797659

    APA Style (7th edition)

  • Muttavarapu, Ramya. CHARACTERIZATION OF COLD DRAWN POLY L LACTIC ACID BY RAMAN SPECTROSCOPY AND RAMAN HYPERSPECTRAL IMAGING. 2015. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1427797659.

    MLA Style (8th edition)

  • Muttavarapu, Ramya. "CHARACTERIZATION OF COLD DRAWN POLY L LACTIC ACID BY RAMAN SPECTROSCOPY AND RAMAN HYPERSPECTRAL IMAGING." Master's thesis, Cleveland State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1427797659

    Chicago Manual of Style (17th edition)

csu1427797659
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© 2015, all rights reserved.
This open access ETD is published by Cleveland State University and OhioLINK.