https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:solids-liquids-and-gases/v/crystalline-and-amorphous-polymers 2022-10-05T02:43:18.611402953Z Crystalline and amorphous polymers Polymers can exist as both crystalline and amorphous solids. In fact, most polymers are semicrystalline, which means that they contain a mixture of crystalline and amorphous regions. In this video, we'll see different examples of semicrystalline and amorphous polymers and learn how their structures can be represented using particulate models. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/eeff6706-f255-46df-9f52-3204fdaf6d1f_1280_720_base.png Crystalline and amorphous polymers Polymers can exist as both crystalline and amorphous solids. In fact, most polymers are semicrystalline, which means that they contain a mixture of crystalline and amorphous regions. In this video, we'll see different examples of semicrystalline and amorphous polymers and learn how their structures can be represented using particulate models. https://cdn.kastatic.org/ka-youtube-converted/p5mXv39n9GM.mp4/p5mXv39n9GM.mp4 282 Solids