What are characteristics of polymers (advantages and disadvantages)?相关知识点: 试题来源: 解析 优点:质轻、耐腐蚀、绝缘性好、易加工成型、成本低;缺点:机械强度较低、耐高温性差、易老化、难降解回收、部分聚合物有毒 判断流程:题目明确询问聚合物的优缺点,内容完整且知识点明确,存在标准答案,无需舍弃。
Proteins are the polymers of. Explain the relationship between sugars (glucose) and starches (carbohydrates). (Note: Use the terms, monomer and polymer, in your explanation.) Can enzymes be called polymers? Which of the major types of biomolecules is never found in a polymeric form? a) amino...
Steroids such as cholesterol, used by the human body to produce hormones and other major components of the nervous system, are not considered true polymers. While they are lipid molecules, incapable of being dissolved in water, their bonds form a ring, fused with carbon, rather than a chain....
H. (1999). Biodegradable polymers vs. recycling: What are the possibilities. Critical Reviews in Analytical Chemistry, 29 (3), 231–241.Pavlath, A. E. and Robertson, G. H., “Biodegradable Polymers vs. Recycling: What are the Possibilities,” Critical Reviews in Analytical Chemistry, Vol....
Question 15.2:What are natural and synthetic polymers? Give two examples of each type. 相关知识点: 试题来源: 解析 Natural polymers are polymers that are found in nature.They are formed by plants andanimals. Examples include protein, cellulose, starch, etc.Synthetic polymers are polymers made by...
What are the monomers of PHBV? Monomers: Monomers are molecules that form the foundation of basic units for polymers. Monomers bind to each other to form a long chain molecule with repeating units that are polymerized to form a specific molecule. ...
The electrospinning technique offers the advantage of processing a wide variety of materials including polymers and additives that are well mixed and/or suspended in solution. There are mainly three types of polymers used in electrospinning classified depending on the source: natural, synthetic and ...
Polymers are a key enabler in electronic packaging. The logical question is: what types of polymers are well-suited for electronics? There are two basic classes of polymers; thermoplastics and thermosets. As shown in the schematic on the left, polymers (poly meaning many, and mers meaning units...
polymerburn readily in presence of oxygen, and generally thermoplastics are worse than thermoset materials. The flammability of polymers can limit their applications. Fire safety concerns regarding flammability of polymers has put specific and strict requirements for certain types of application, for ...
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