Furan based nylon and polyurethane——Viewpoints and perspectives

Abstract

This mini-review summarizes the chemical and physical characteristics of the furan ring, serving as a fundamental basis for understanding furan-based polymers. Two significant categories of furan-based polymers are examined: polyamide and polyurethane. The synthesis of furan-based nylon and polyurethane encounters challenges related to chain growth and high-temperature breakdown, which considerably limits the molecular weight of the final products. The potential solutions may require the integration of catalysis optimization, step polymerization, and polymerization parameters, among others. Another problem is that prospective research directions must be meticulously assessed about the incremental value of the furan ring to the current polymers. The bio-derived characteristics of the furan ring do not guarantee its substitution with benzene or an aliphatic segment. The inherent characteristics of the furan ring, such as elevated glass transition temperature, robust hydrogen bonding, and hydrophilicity, should serve as guiding principles in the design of furan-based polymers.