主题词：biodegradable polymer synthesis and properties; Polymer Nanocomposites and Properties; Polymer crystallization and properties; Polymer composites and self-healing; Diverse Scientific and Economic Studies; Additive Manufacturing and 3D Printing Technologies; Human auditory perception and evaluation; Educational Robotics and Engineering; Flame retardant materials and properties; Advanced Sensor and Energy Harvesting Materials; Natural Fiber Reinforced Composites; Fiber-reinforced polymer composites; Microplastics and Plastic Pollution; Synthesis and properties of polymers; Polymer Foaming and Composites; Silicone and Siloxane Chemistry; Dielectric materials and actuators; Electrospun Nanofibers in Biomedical Applications; Carbon dioxide utilization in catalysis; Epoxy Resin Curing Processes; Recycling and Waste Management Techniques; Tribology and Wear Analysis; Nanocomposite Films for Food Packaging; Conducting polymers and applications; Advanced Materials and Mechanics