文章信息/Info

Title:

 Layer by Layer Assembled Functional Thick Films

作者:

 孫俊奇

（吉林大學(xué) 超分子結(jié)構(gòu)與材料國家重點(diǎn)實(shí)驗(yàn)室，吉林 長春 130012）

Author(s):

 SUN Junqi

 (State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012,China)

關(guān)鍵詞:

 ; 層層組裝; 功能膜; 聚合物復(fù)合膜

文獻(xiàn)標(biāo)志碼:

A

摘要:

    層層組裝是一種基于物質(zhì)交替沉積而制備復(fù)合膜的方法，可以實(shí)現(xiàn)膜的結(jié)構(gòu)和組成的精確調(diào)控。層層組裝通常被認(rèn)為是超薄膜的構(gòu)筑方法。與超薄膜相比，微米或亞微米的厚膜更容易實(shí)現(xiàn)高的負(fù)載、微納復(fù)合結(jié)構(gòu)的調(diào)控、多功能集成以及賦予膜更高的穩(wěn)定性。以作者的研究結(jié)果為基礎(chǔ)，闡明了利用大尺度的構(gòu)筑基元，包括聚合物復(fù)合物、大尺度的無機(jī)粒子以及聚集的粒子，可以方便地實(shí)現(xiàn)微米厚度的層層組裝膜的快速構(gòu)筑。以快速構(gòu)筑的厚膜為功能載體，實(shí)現(xiàn)了層層組裝膜的自修復(fù)、高負(fù)載、細(xì)胞可控粘附及多功能集成。進(jìn)一步，將層層組裝厚膜從基底上剝離制備了自支持膜，拓展了層層組裝膜的功能。

Abstract:

    The layer by layer (LbL) assembly, which involves alternate deposition of species with complementary groups, has been demonstrated to be a convenient and versatile method to fabricate functional film materials with precise control of the chemical composition and structure. The LbL assembly is usually employed as a method for ultrathin film fabrication. Compared with ultrathin films, the LbL assembled films with micrometer�瞭hickness have the irreplaceable advantages of high loading capacity, enhanced mechanical robustness, convenience in tailoring micro  and nanoscaled hierarchical structures and integrating multiple functions into one film. We demonstrate herein that building blocks with large dimensions, including polymeric complexes, large sized inorganic particles and particle aggregates, can be LbL assembled to rapidly fabricate micrometer thick composite films.