嬉戏
聚合
开环复分解聚合
单体
复分解
格拉布催化剂
材料科学
聚合物
高分子化学
化学
有机化学
作者
Muhammad Nazrul Islam,Ilay Ceren Çetinkaya,Tarık Eren,Metin Tülü
标识
DOI:10.1080/10601325.2023.2195947
摘要
AbstractOxanorbornene cored 0.5, 1.5 and 2.5 generation ester terminated PAMAM dendronized monomers with 2 and 6 carbon-containing alkyl spacer in the middle of oxanorbornene core and dendronized branching were synthesized. Monomers were polymerized through the ring-opening metathesis polymerization (ROMP) technique by using 2nd and 3rd generation Grubbs catalysts to get dendronized ROMP polymers. It was found that Grubbs 3rd generation catalyst works well for 0.5 generation dendronized ROMP polymer whereas Grubbs 2nd generation catalyst works for the higher generation. We also found the linker effect during polymerization as six-carbon linker monomers polymerize with high yield along with higher generation. Finally, dendronized ROMP-based PAMAM encapsulated zero valent Cu nanoparticle was synthesized by using a reducing agent, NaBH4. The catalytic activity of this nanoparticle was further investigated from the reduction of 4-nitrophenol to 4-aminophenol.Keywords: ROMPPAMAMdendrimer encapsulated Cu nanoparticlecatalysis Additional informationFundingFinancial support by the Turkish Govt. Scholarship (No. 13BD110201), is gratefully acknowledged.
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