amorphous polymer
Quick Summary
In chemistry, an amorphous polymer is a type of polymer where the molecules are randomly oriented and intertwined, similar to cooked spaghetti. This random arrangement gives amorphous polymers a glass-like, transparent appearance.1
Unlike semicrystalline polymers, which have ordered regions called crystallites, amorphous polymers lack this structure. This lack of order means they tend to be less tough than semicrystalline polymers, which benefit from strong intermolecular forces due to close chain packing.1
Amorphous polymers, like other amorphous solids, exhibit a glass transition temperature (Tg). Below this temperature, they are in a rigid, glassy state. Above Tg, they enter a rubbery state with increased molecular motion, allowing them to be molded or shaped. Examples of common amorphous polymers include polystyrene and polyvinyl chloride.123
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- chemistry of industrial polymersAmorphous and semicrystalline
In an amorphous polymer the molecules are oriented randomly and are intertwined, much like cooked spaghetti, and the polymer has a glasslike, transparent appearance. In semicrystalline polymers, the molecules pack together in ordered regions called crystallites, as shown in Figure 2. As might be expected, linear polymers,…
Read MoreIn an amorphous polymer the molecules are oriented randomly and are intertwined, much like cooked spaghetti, and the polymer has a glasslike, transparent appearance. In semicrystalline polymers, the molecules pack together in ordered regions called crystallites, as shown in Figure 2. As might be expected, linear polymers,…
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plasticPhysical states and molecular morphologies…simply, polymer morphologies are either amorphous or crystalline. Amorphous molecules are arranged randomly and are intertwined, whereas crystalline molecules are arranged closely and in a discernible order. Most thermosets are amorphous, while thermoplastics may be amorphous or semicrystalline. Semicrystalline materials display crystalline regions, called crystallites, within an amorphous matrix. In
Read More…simply, polymer morphologies are either amorphous or crystalline. Amorphous molecules are arranged randomly and are intertwined, whereas crystalline molecules are arranged closely and in a discernible order. Most thermosets are amorphous, while thermoplastics may be amorphous or semicrystalline. Semicrystalline materials display crystalline regions, called crystallites, within an amorphous matrix. In
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