Organic-inorganic copolymers with double-decker silsesquioxane in the main chains by polymerization via click chemistry
作者:Kun Wei、Lei Wang、Sixun Zheng
DOI:10.1002/pola.26836
日期:2013.10
A series of novel organic–inorganic copolymers with polyhedral oligomeric silsesquioxane (POSS) in the main chains were synthesized via the copper‐catalyzed Huisgen 1,3‐dipolar cycloaddition polymerization approach. Toward this end, we synthesized 3,13‐azidopropyloctaphenyl double‐decked silsesquioxane (DDSQ). This difunctional POSS macromer was used to copolymerize with α,ω‐dialkynyl‐terminated oligoethylenes
通过铜催化的Huisgen 1,3-偶极环加成聚合反应,合成了一系列在主链上具有多面体低聚倍半硅氧烷(POSS)的新型有机-无机共聚物。为此,我们合成了3,13-叠氮基丙基八苯基双层倍半硅氧烷(DDSQ)。该双官能POSS大分子单体用于与具有可变数目的乙烯单元的α,ω-二炔基末端的低聚乙烯共聚。获得的有机-无机共聚物的POSS质量分数高达79%。凝胶渗透色谱法表明,在所有情况下均成功获得了高分子量共聚物。差示扫描量热法显示这些共聚物的玻璃化转变幅度非常微弱,提示负责玻璃化转变的节段运动受到主链中DDSQ笼的高度限制。热重分析表明,有机-无机杂化共聚物显示出极高的热稳定性。接触角测量表明,这些有机-无机共聚物具有高度疏水性,并且表面能非常低。©2013 Wiley Periodicals,Inc. J. Polym。科学,A部分:Polym。化学2013,51,4221-4232