Anionic and Lewis base photopolymerization process and its use for making optical articles
申请人:——
公开号:US07253213B2
公开(公告)日:2007-08-07
The invention relates to a process for polymerising a monomer, polymerizing and/or crosslinking an oligomer, or crosslinking a polymer or copolymer, said monomer, oligomer, polymer and copolymer being selected among precursor monomers, urethane, thiourethane and episulfide oligomers, and urethane, thiourethane and episulfide polymers and copolymers, which comprises:
(a) adding to precursor monomers or oligomers or polymers or copolymers an effective amount of at least one complex of Co, Mo or W which under irradiation conditions photochemically reacts to release at least one anionically charged nucleophile or uncharged Lewis base; and
(b) irradiating the mixture of (a) to release the at least one anionically charged nucleophile or uncharged Lewis base to initiate polymerisation and/or crosslinking of the monomer, oligomer, polymer or copolymer.
该发明涉及一种聚合单体、聚合和/或交联寡聚物,或交联聚合物或共聚物的过程,所述单体、寡聚物、聚合物和共聚物被选择在前体单体、脲醇、硫脲醇和环硫醚寡聚物,以及脲醇、硫脲醇和环硫醚聚合物和共聚物之中,所述过程包括:(a)向前体单体或寡聚物或聚合物或共聚物中添加至少一种Co、Mo或W的复合物的有效量,在辐射条件下光化学地反应以释放至少一种带负电荷的亲核试剂或不带电的Lewis碱;和(b)辐照(a)中的混合物,以释放至少一种带负电荷的亲核试剂或不带电的Lewis碱,以启动单体、寡聚物、聚合物或共聚物的聚合和/或交联。