作者:Haruyuki Okamura、Masamitsu Shirai
DOI:10.1016/j.polymer.2010.09.010
日期:2010.10
Novel poly(aryl ether) type dendrimers having photo-cross-linking and thermal de-cross-linking properties were synthesized by a convergent method. A protected A2B monomer, 1-allyloxy-3,5-bis(bromomethyl)benzene, was newly prepared for the dendrimer synthesis. Palladium-catalyzed deprotection of an allyl group proceeded in high yields. The films of dendrimers containing a photoacid generator (PAG) became
通过收敛法合成了具有光交联和热解交联性质的新型聚(芳醚)型树枝状聚合物。为树状聚合物的合成新制备了一种受保护的A 2 B单体1-烯丙氧基-3,5-双(溴甲基)苯。钯催化的烯丙基的脱保护以高产率进行。含有光致产酸剂(PAG)的树枝状聚合物薄膜在辐照后变得不溶于溶剂。在120–200°C下烘烤后,被辐照的膜可溶于溶剂。辐射和烘烤条件以及树枝状聚合物的生成强烈影响了不溶和再溶解的过程。通过TGA和DTA分析以及FT-IR光谱研究了反应路径。