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在已有基团转移聚合机理研究的基础上,提出特种离子场活化聚合机理。认为在基因转移聚合过程中,阴离子催化剂主要是形成一种特殊形式的“离子场”,从而使引发剂得到活化。这种场的总强度Q与催化剂摩尔浓度成正比;而每个引发剂分子分享到的场强Q_i则与其本身摩尔浓度n成反比,即Q_i=Q/n;当Q_i达到一特定值,即Q_i>Q_(min),基因转移聚合便可发生。在特定范围内,Q_i值越大,引发剂受到活化的程度越高,聚合诱导期越短,聚合反应也越快。
Based on the research of the mechanism of group transfer polymerization, the mechanism of special ion field activation polymerization was proposed. It is thought that in the process of gene transfer polymerization, the anionic catalyst mainly forms a special form of “ion field” so as to activate the initiator. The total intensity Q of this field is proportional to the molar concentration of the catalyst; and the field strength Q_i shared by each initiator molecule is inversely proportional to its own molarity n, ie Q_i = Q / n; when Q_i reaches a specific value, ie Q_i> Q_ (min), gene transfer polymerization can occur. Within a certain range, the higher the Q_i value, the higher the initiator is activated, the shorter the polymerization induction period and the faster the polymerization reaction.