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[Chemical Knowledge]：The difference between polystyrene and polystyrene

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Polystyrene and polystyrene are two common chemical raw materials, which are widely used in the chemical industry. Although they are very similar in name, there are obvious differences in their nature and use. From the chemical structure of

, polystyrene is polymerized from styrene molecules, while polyphenylene is polymerized from styrene molecules. Polystyrene molecules contain ether bonds, while polyphenylene molecules do not contain ether bonds. This difference leads to the difference in properties between polystyrene and polyphenylene.

From the physical properties, polystyrene is usually a colorless transparent solid, while polyphenylene is a Milky White or slightly yellowish uniform color. In terms of mechanical properties, the hardness of polystyrene is slightly higher than that of polystyrene, but the toughness of polystyrene is better than that of polystyrene. In addition, the texture of polystyrene is relatively hard, while the texture of polyphenylene is relatively soft.

In addition, from the use point of view, due to the hardness and transparency of polystyrene is better, it is often used in the printing industry to make transparent plastic packaging boxes, engineering models, etc.; and polystyrene has better toughness and softness, So it is widely used in electrical housings, thermos cups, plastic toys and other fields. Therefore, when selecting chemical raw materials, it is necessary to select polystyrene or polyphenylene according to specific usage scenarios and requirements.

To sum up, there are obvious differences between polystyrene and polyphenylene in chemical structure, physical properties and uses. Careful understanding of the differences between them is of great significance for the correct selection and application of chemical raw materials.

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