Читать книгу Halogen Bonding in Solution - Группа авторов - Страница 38

A seminal study of light‐sensitive polymers compared hydrogen and halogen bond‐based azobenzene photopolymers [183]. It was found that the halogen‐bonded polymers had a greater light‐induced mass transport efficiency than the hydrogen bond analogues. The use of halogens did not change the photophysical or electronic properties significantly, suggesting that incorporation of halogen bond motifs into other known systems could easily modulate performance. Later studies of azobenzene polymers as light‐induced surface patterning polymers show that halogen bonding species outperform hydrogen bonding ones in terms of patterning efficiency, which the authors attribute to the high directionality of the halogen bond. The efficiency was also shown to be directly proportional with halogen bond strength [184].