contents introduction 1.1. what is a chain extender? 1.2. function of chain extenders in polyurethane chemistry 1.3. importance of chain extender selection classification of chain extenders 2.1. diols 2.1.1. short-chain diols 2.1.2. long-chain diols 2.2. diamines 2.2.1. aromatic diamines 2.2.2. aliphatic diamines 2.3. amino alcohols 2.4. water factors influencing chain extender selection 3.1. polymer properties...