Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1303-0244-3 |
Объём: | 76 страниц |
Масса: | 135 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
Step-growth polymerization refers to a type of polymerization mechanism in which bi-functional or multifunctional monomers react to form first dimers, then trimers, longer oligomers and eventually long chain polymers. Many naturally occurring and some synthetic polymers are produced by step-growth polymerization, e.g. polyesters, polyamides, polyurethanes, etc. Due to the nature of the polymerization mechanism, a high extent of reaction is required to achieve high molecular weight. The easiest way to visualize the mechanism of a step-growth polymerization is a group of people reaching out to hold their hands to form a human chain — each person has two hands. There also is the possibility to have more than two reactive sites on a monomer: In this case branched polymers are produced.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.