For one thing, they are complex and giant molecules and are different from low molecular weight compounds like, say, common salt. To contrast the difference, the molecular weight of common salt is only 58.5, while that of a polymer can be as high as several hundred thousand thousands. These...
1 What are polymers?A polymer is a large molecule (‘macromolecule’) composed of structural units typicallyconnected by covalent chemical bonds. The basic unit of a polymer is amerandpolymeans‘many’,sotheword‘polymer’means a substance with many basic units. Thereare different types of mers...
Whehnthesc rings are interlinked, the chain formed can be considered as reprcscatingapolymer from molecules ó the sdimic compoutiad Alternatively, individyalrings cuidbe ofdifferent sizes and materials, and interlinked to represent a polymer ffom molecules of dif-ferent compouds.artbgeuurrle ...
Whehnthesc rings are interlinked, the chain formed can be considered as reprcscatingapolymer from molecules ó the sdimic compoutiad Alternatively, individyalrings cuidbe ofdifferent sizes and materials, and interlinked to represent a polymer ffom molecules of dif-ferent compouds.artbgeuurrle ...
What is a polymer - Polymers are a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples of simpler chemical units called monomers.Polymers make up many of the materials in living organisms,
相关知识点: 试题来源: 解析 答:材料科学中的三大基础材料是金属材料、无机非金属材料和高分子材料。The three basic materials in materials science are metallic materials, inorganic non-metallic materials and polymer.反馈 收藏
And those are also three categories of polymer materials.We can see these three kinds of polymer materialsevery day.Fibers are the most closest to us; almost all our clothes are madefrom fibers. On the tags in our clothes, we can seewhat our clothes are made from.The most common fibers ...
Polyester is a specific type of polymer used mainly in fabrics and textiles, offering durability and chemical resistance, while polymers are large molecules comprising many repeated subunits, utilized across diverse industries.
Moreover, thermoplastics have secondary weak van der Waal interactions between polymer chains and covalent interactions between monomer molecules. These weak bonds can be broken by heat, leading to changes in the molecular structure. However, thermosetting plastics are non-recyclable due to the permanent...
The termpolymeris commonly used in the plastics and composites industry, often as a synonym forplasticorresin. Actually, polymers include a range of materials with a variety of properties. They are found in common household goods, in clothing and toys, in construction materials and insulation, an...