polyisobutylene

例句：

1. 1. This polymer is used in the production of plastic products.
   这种聚合物用于生产塑料产品。
2. 2. Polyisobutylene has excellent thermal and mechanical properties.
   聚异丁烯具有优良的热和机械性能。
3. 3.The polyisobutylene is resistant to high temperatures and chemicals.
   该聚合物对高温和化学物质具有良好的抗性。