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Blends of High Molecular Weight Poly(lactic acid) (PLA) with Copolymers of 2-bromo-3-hydroxypropionic Acid And Lactic Acid (PLB)

Lei, Xia
http://rave.ohiolink.edu/etdc/view?acc_num=akron1367402061

Abstract Details

2013, Master of Science in Polymer Engineering, University of Akron, Polymer Science.
Poly(lactic acid) (PLA) is considered to be one of the most promising biodegradable materials in the family of aliphatic polyesters. PLA and its copolymers, such as poly(lactic acid)-co-(glycolic acid), are widely used as biomedical materials or alternatives to petrochemical-based polymers. PLA has the advantage that it is produced commercially by an efficient method at relatively low cost. However, there are some disadvantages to PLA. It is brittle and difficult to functionalize. Blending is an extremely promising approach to improve the properties of polymers. Blends may exhibit the physical and chemical properties of both individual polymers. The miscibility of the two polymers can be evaluated by the glass transition temperature (Tg) method. Different chemical properties, such as optimum hydrophilic/hydrophobic balance and the ability to act as a drug-carrier may be obtained by functionalization of our recently synthesized brominated PLA copolymers. Materials with good mechanical properties may be produced by blending functionalized PLA with high molecular weight commercialized PLA. This study investigates the miscibility of brominated PLA with high molecular weight PLA. The influence of different blends ratios, molecular weights of PLA and configurations of PLA on the miscibility is presented.
Coleen Pugh, Dr. (Advisor)
Li Jia, Dr. (Committee Member)
Polymers
Miscibility; Poly(2-bromo-3-hydroxypropionic Acid-co-Lactic Acid); Poly(lactic acid)

Recommended Citations

Citations

  • Lei, X. (2013). Blends of High Molecular Weight Poly(lactic acid) (PLA) with Copolymers of 2-bromo-3-hydroxypropionic Acid And Lactic Acid (PLB) [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1367402061

    APA Style (7th edition)

  • Lei, Xia. Blends of High Molecular Weight Poly(lactic acid) (PLA) with Copolymers of 2-bromo-3-hydroxypropionic Acid And Lactic Acid (PLB). 2013. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1367402061.

    MLA Style (8th edition)

  • Lei, Xia. "Blends of High Molecular Weight Poly(lactic acid) (PLA) with Copolymers of 2-bromo-3-hydroxypropionic Acid And Lactic Acid (PLB)." Master's thesis, University of Akron, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1367402061

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Akron and OhioLINK.