Architecture - behaviour - properties relationship in Star-shaped MPA-PMMA and MPA-PS hyper-branched copolymers

Gabriel Ríos Valer, Gisela Díaz, Juan M Giussi*, Marcelo Ceolín

Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata - Argentina

Adv. Mater. Lett., 2019, 10 (7), pp 476-483

DOI: 10.5185/amlett.2019.2224

Publication Date (Web): Jan 14, 2019

E-mail: jmgiussi@inifta.unlp.edu.ar

Abstract


The molecular architecture of polymers is a crucial feature in the moment of think the relationship between properties and applications. The same polymer can present important differences according to its architecture and leads to different possible applications. In this paper, we describe the well preparation of hyperbranched copolymers based on bis (Hydroxyl-Methyl) propionic acid polyester (MPA). The co-monomers introduced via atom transfer radical polymerization were methyl methacrylate (MMA) and styrene (St). In order to study the effect of confinement, linear PMMA and PSt have been prepared, and moreover different levels of branching of each polymer were prepared. The synthesised star PMPA-PMMA and PMPA-PSt copolymers have been characterized and identified by infrared spectroscopy and nuclear magnetic resonance spectroscopy. Thermal transitions in solid state were studied using differential scanning calorimetry, and the thermal stability was evaluated by thermogravimetric analysis. Finally, solution properties have been evaluated thought Dynamic Light Scattering. Our results, obtained by a meticulous and systematic comparative study, showed a clear tendency between architectural level and thermal properties. Moreover, properties in solution revealed interesting response due to the modification of solvent nature. © VBRI Press.

Keywords

Star-shaped hyperbranched copolymers with different generation levels, thermal characterization, solution properties.

Current Issue

Celebrating 10th Years of Diamond Open Access Publishing in Advanced Materials  


Cerebral Oxygenation Studies Through Near Infrared Spectroscopy: A Review


Analysis of Fine Sulfoaluminate Cement by Strength and Thermogravimetric Analysis


Characterization of the Interfacial Surface Energy for Composite Electrical Conduction Measurements using Two Full Range Percolation Threshold Models


Quantitative Detect of Fatigue of Membrane of Erythrocyte in Uniform Shear Field


Ecofriendly-developed Polyacrylic Acid-coated Magnetic Nanoparticles as Catalysts in Photo-fenton Processes


Evaluation of Drug Interactions with Medications Prescribed to Ambulatory Patients with Metabolic Syndrome in Urban Area


Fiber-reinforced Cementitious Composite: Sensitivity Analysis and Parameter Identification 


Evaluation of Drug Utilization Patterns Based on World Health Organization Drug use Indicators at Outpatients Clinics


Are Quantitatively Micro-machined Scaffolds Effective for Cell Technology?


Synthesis and Characterization of Gold Nanoparticles from Lobelia Nicotianifolia Leaf Extract and its Biological Activities


Advanced Oxidations of Tartrazine Azo-dye


Antifungal Activity of Salvia jordanii Against the Oral Thrush Caused by the Cosmopolitan Yeast Candida albicans among Elderly Diabetic Type 2 patients


Previous issues

Advanced Materials Congress Celebrating 10th Years of Establishment

Secure Management of Networked Batteries for Building Integrated Photovoltaics (BIPV) Systems  

The Cause of 100-year Low Carbonated Concrete of the Bridge 

Organic Montmorillonite Intercalated Nano-composites Prevent Post-Surgical Associated Infections

Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends

Preparation and Characterization of Nickel Ferrite Nanoparticles via Sol-gel Method

Nitrogen-doped Diamond Nanowire Gas Sensor for the Detection of Methane

Manufacture of Functional Open-cell Al Foams with Recycled Al Scraps using NaCl Ball Space Holder 

Vilsmeier-Haack Transformations under Non Classical Conditions

New Application of Highly Vesicular Basalt from Jabel Isbil Volcano (Dhamar-Rada'a Volcanic Field), Yemen

An Assessment of Tribological Characteristics under different Operating Condition

Functional Bi Coatings as A Perspective Material for Radiation Shields Production against Electron Radiation

Effects of Silica Modified NiFe2O4 on the Dielectric and Electrical Properties of NiFe2O4 filled Poly (methyl methacrylate) Composites

Upcoming Congress

Knowledge Experience at Sea TM