Selective Incorporation of Palladium Nanoparticles into Microphase-Separated Domains of Poly(2-vinylpyridine)-block-polyisoprene
Selective Incorporation of Palladium Nanoparticles into Microphase-Separated Domains of Poly(2-vinylpyridine)-block-polyisoprene
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DOI：
10.1021/la990246l
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发表时间：
1999-07
期刊：
影响因子：
3.9
通讯作者：
K. Tsutsumi;Y. Funaki;Y. Hirokawa;T. Hashimoto
中科院分区：
文献类型：
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作者：
K. Tsutsumi;Y. Funaki;Y. Hirokawa;T. Hashimoto
通过乙酰丙酮钯的还原制备了直径为 4−5 nm 且与聚（2-乙烯基吡啶）均聚物（P2VP）或聚（2-乙烯基吡啶）-嵌段-聚异戊二烯二嵌段共聚物（P2VP-b-PI）配位的细钯（Pd）颗粒。 (PdII(acac)2) 与 1-丙醇在 P2VP 或 P2VP-b-PI 的稀苯溶液中反应。通过将由 Pd 纳米颗粒、P2VP-b-PI 和氯仿组成的溶液浇注到薄膜样品中，这些 Pd“纳米颗粒”被选择性地掺入微域的特定区域。与P2VP配位的纳米粒子被选择性地整合到P2VP域中，而与P2VP-b-PI配位的纳米粒子则围绕P2VP和PI域之间的界面。
Fine palladium (Pd) particles, which have a diameter of 4−5 nm and are coordinated with the poly(2-vinylpyridine) homopolymer (P2VP) or poly(2-vinylpyridine)-block-polyisoprene diblock copolymer (P2VP-b-PI), were prepared by the reduction of palladium acetylacetonate (PdII(acac)2) with 1-propanol in the dilute benzene solution of P2VP or P2VP-b-PI. These Pd “nanoparticles” were selectively incorporated into a particular region of microdomains by casting a solution comprised of the Pd nanoparticles, P2VP-b-PI, and chloroform as a solvent into film specimens. The nanoparticles coordinated with P2VP were selectively incorporated into the P2VP domains, while those coordinated with P2VP-b-PI were around the interface between the P2VP and PI domains.