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Toughening Semicrystalline Poly(Lactic Acid) By Morphology Alteration
Pure sciences Applied sciences Hydrolytic stability Morphology Poly(lactic acid) Rubbery Stereocomplex Toughening
2014/11/21
For the first time, a physical method based on polymer crystallization is employed, to overcome the inherent brittleness of poly (L-lactic acid) (PLLA) by kinetically trapping a low Tg continuous amor...
Macromolecular Assemblies: Human Gamma-Crystallin Protein, Glutamic Acid Bottle Brushes, And Hyaluronic Acid Gels
Pure sciences Biological sciences Macromolecular assemblies Gamma-crystallin proteins Glutamic acid Hyaluronic acid
2014/11/21
Macromolecular assemblies constitute the world in which we live. The work contained within this thesis has studied three different types of macromolecular assemblies: human γ-crystallin protein aggreg...
Characterization of Self-Assembled Functional Polymeric Nanostructures: I. Magnetic Nanostructures from Metallopolymers II. Zwitterionic Polymer Vesicles in Ionic Liquid
Diblock Copolymer Functional Polymers Magnetic Materials Materials Characterization Metal-functionalized polymers Self-assembly
2014/11/21
Two diverse projects illustrate the application of various materials characterization techniques to investigate the structure and properties of nanostructured functional materials formed in both bulk ...
Bending, Wrinkling, and Folding of Thin Polymer Film/Elastomer Interfaces
Deformation Folding Instability Polymer Thin Film Wrinkling
2014/11/21
This work focuses on understanding the buckling deformation mechanisms of bending, wrinkling, and folding that occur on the surfaces and interfaces of polymer systems. We gained fundamental insight in...
Applications of Planar and Patterned Metal Oxide Nanocomposites and Reactive Polymer Blends as Gas Permeation Membranes
Pure sciences Applied sciences Metal oxide Nanocomposite Nanoimprint lithography Nanoparticles Patterning Photonics
2014/11/21
The work in this dissertation is divided into two distinct projects. The majority of this dissertation was based on applications of planar and patterned metal oxide nanocomposites; in particular modif...
Self-Assembly of Block Copolymers for the Fabrication of Functional Nanomaterials
additive-driven self-assembly block copolymer directed self-assembly hierarchical pattern formation mesoporous silica film phase separation
2014/11/21
This dissertation explores the use of block copolymers which can self-assemble into different morphologies as templates to fabricate nanostructured materials. The first section (Chapters 2-4) reports ...
FUNCTIONAL NANOCOMPOSITES FROM SELF-ASSEMBLY OF BLOCK COPOLYMERS WITH NANOPARTICLES
nanoparticle block copolymer morphology metamaterial
2014/11/21
This dissertation studied the proper distribution and location control of nanoparticles (NPs) within block copolymer (BCP) templates. A facile ligand exchange reaction was introduced for the hydrophil...
FUNCTIONAL PHOSPHORYLCHOLINE POLYMERS: PRODRUGS AND BIOMATERIALS
polymer chemistry phosphorylcholine polymers drug delivery biomaterials polymer-drug conjugation hydrogels
2014/11/21
This thesis describes the synthesis and applications of multifunctional, hydrophilic polymers consisting of a methacrylate backbone and zwitterionic phosphorylcholine (PC) pendent groups, prepared by ...
FUNCTIONAL NANOPARTICLES AT INTERFACES: EMULSION STABILIZATION AND TRIGGERED INVERSION
Nanoparticle Emulsion Ligand Polymer Functionalization Capsule
2014/11/21
Encapsulation of materials can be performed through the stabilization of fluid-fluid interfaces and the formation of emulsion droplets, which is commonly achieved with surfactants, including small mol...
Morphology Characterization of Low Band Gap Polymer-based Organic Photovoltaics
Morphology organic photovoltaic phase separation crystallization diffusion
2014/11/21
In bulk heterojunction (BHJ) thin film organic photovoltaics (OPV), morphology control is critical to obtain good device efficiency. Nanoscale phase separation that creates bicontinuous interpenetrati...
Guanidinium-Rich ROMP Polymers Drive Phase, Charge, and Curvature-Specific Interactions with Phospholipid Membranes
Protein Transduction Domains Cell-Penetrating Peptides Membranes Phospholipids Vesicles Drug Delivery
2014/11/21
Protein transduction domains (PTDs) and their and their synthetic mimics are short sequences capable of unusually high uptake in cells. Several varieties of these molecules, including the arginine-ric...
ON THE MORPHOLOGY OF POLYMER-BASED SOLAR CELLS TO ACHIEVE HIGHER DEVICE PERFORMANCE
polymer-based solar cells multi-length-scale morphology ternary blend solar cells crystallization processing additives bilayer interdiffusion
2014/11/21
It has been recognized that the morphology of the active layer of the polymer-based solar cells has a great influence on the device performance. To push the efficiency to a higher level, morphology de...
Self-Assembly of Block Copolymers by Solvent Vapor Annealing, Mechanism and Lithographic Applications
Block copolymer Lithography realtime measurement Self-assembly Solvent vapor annealing X-ray scattering
2014/11/21
Block copolymers (BCP) are a unique class of polymers, which can self-assemble into ordered microdomains with sizes from 3 nm to about 50 nm making BCPs an appealing meso-scale material. In thin films...
On the Assembly of Functionalized CdSe Nanorods
CdSe nanorods vertical alignment hybrid solar cells P3HT
2014/11/21
High aspect ratio (AR) CdSe nanorods (NRs) of well-defined sizes were synthesized to optimize the geometries of photovoltaic devices made from these nanorods. Long-range ordering of hexagonal arrays o...