A5029950712- Polymer composites and self-healing
- Electrospun Nanofibers in Biomedical Applications
- biodegradable polymer synthesis and properties
- Advanced Cellulose Research Studies
- Nanocomposite Films for Food Packaging
- Synthetic Organic Chemistry Methods
- Lignin and Wood Chemistry
- Sustainability in Higher Education
- Bone Tissue Engineering Materials
- Environmental and Ecological Studies
- Healthcare and Environmental Waste Management
- Flame retardant materials and properties
- Carbon dioxide utilization in catalysis
- Additive Manufacturing and 3D Printing Technologies
- Advanced Polymer Synthesis and Characterization
- Science, Technology, and Education in Latin America
- Educational methodologies and cognitive development
- Health, Education, and Physical Culture
- Building Energy and Comfort Optimization
- Polymer Surface Interaction Studies
- Polydiacetylene-based materials and applications
- Law, Ethics, and AI Impact
- Environmental Education and Sustainability
- Marine Sponges and Natural Products
- Silk-based biomaterials and applications
University of the Basque Country
2012-2024
Polytechnic Institute of Bragança
2014-2016
Abstract The effect of soft segment molecular weight and chemical structure on the morphology final properties segmented thermoplastic polyurethanes containing various hard contents has been investigated from viewpoint degree microphase separation. Vegetable oil‐based polyesters corn sugar‐based chain extender have used as renewable resources. synthesis carried out in bulk without catalyst using a two‐step polymerization process. Physicochemical, thermal mechanical properties, also...
Shape-memory bionanocomposites based on a naturally sourced segmented thermoplastic polyurethane and chitin nanocrystals were synthesized, their mechanical properties thermally activated shape-memory behavior studied. The incorporated during the synthesis of prepolymer made from castor oil-based difunctional polyol hexamethylene diisocyanate. polymerization was completed by addition propanediol, as corn-sugar chain extender, bringing weight content components renewable resources to >60%....
Cross-linked polyurethanes (PUs) present outstanding properties and high versatility, making them ideal for use in many different applications. Nevertheless, the intersection of environmental socioeconomic concerns regarding recyclability cross-linked materials presents alternative opportunities advancing field polyurethane chemistry. In this context, emerging reprocessable recyclable biobased PUs were synthesized within work through Diels–Alder (DA) Thus, a trifunctional partially...
Spider silk is an icon of supertough energy absorbing polymeric material which its macromolecular multiblock composition has been attributed to be responsible for such remarkable properties. As in spider silk, polyurethanes can synthesized with two distinct block differ nature, combining properties like deformability and relatively high strengths. Here we studied four different soft segments (SS) hard (HS), the aim discovering best molecular architecture develop mechanical performance after...
A new family of segmented thermoplastic polyurethanes with thermally activated shape-memory properties was synthesized and characterized. Polyols derived from castor oil different molecular weights but similar chemical structures a corn-sugar-based chain extender (propanediol) were used as starting materials in order to maximize the content carbon renewable resources materials. The composition systematically varied establish structure–property map identify compositions desirable properties....
Polymeric materials, renowned for their lightweight attributes and design adaptability, play a pivotal role in augmenting fuel efficiency cost-effectiveness railway vehicle development. The tailored formulation of compounds, specifically designed additive manufacturing, holds significant promise expanding the use these materials. This study centers on poly(lactic acid) (PLA), natural-based biodegradable polymeric material incorporating diverse halogen-free flame retardants (FRs). Our...
Abstract Summary: Segmented polyurethanes have been synthesized employing polyols derived from renewable resources, semicrystalline or amorphous in nature, as soft segment, and an aliphatic (1,6‐hexamethylene diisocyanate, HDI) aromatic (4,4′‐diphenylmethane MDI) diisocyanate 1,4‐butanediol (BD) hard segment using two‐step bulk polymerization procedure. The effect of structure content on thermal, mechanical shape memory properties has studied by means differential scanning calorimetry,...