Design, Synthesis, and Multiple Hierarchical Ordering of a Novel Side-Chain Liquid Crystalline-Rod Diblock Copolymer
文献类型：期刊论文
| 作者 | Xie, He-Lou1,2,3,4; Liu, Yi-Xin3,4; Zhong, Guan-Qun1,2; Zhang, Hai-Liang1,2; Chen, Er-Qiang3,4; Zhou, Qi-Feng3,4 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2009-11-24 |
| 卷号 | 42期号:22页码:8774-8780 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma9017668 |
| 英文摘要 | A novel double liquid crystalline (LC) block copolymer (BCP) composed of poly[omega-(4'-methoxybiphenyl-4-yloxy)hexyl methacrylate] (PMBHMA) and poly{2,5-bis[(4-meth-oxyphenyl)oxycarbonyl]styrene} (PMPCS) was designed and successfully synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. Whereas PMBHMA is a conventional side-chain LC (SCLC) polymer, PMPCS is a typical mesogen-jacketed I,C polymer, which can serve as rod after it forms columnar LC (Phi) phase. Therefore, the PMBHMA-b-PMPCS is an SCLC-rod BCP. The phase structures and transitions of the PMBHMA-b-PMPCS synthesized with a PMPCS volume fraction of similar to 49% were investigated using various techniques including thermal analysis and X-ray scattering and diffraction methods. A microphase-separated lamellar morphology was identified for this SCLC-rod sample. The Phi phase of the PMPCS block with the rod direction perpendicular to the interface remained unchanged and impacted the LC transitions of PMBHMA blocks greatly. We found that the smectic A phase of the PMBHMA disappeared, and meanwhile, its nematic phase got stabilized over a wide temperature range. At low temperatures, small smectic E domains with homogeneous orientation formed in the PMBHMA block domains. Our work demonstrates that the confinement imposed by the rod block and dimension commensurability of the ordered structures are indeed crucial for SCLC-rod BCPs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000271756500031 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68179]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Hai-Liang |
| 作者单位 | 1.Xiangtan Univ, Key Lab Polymer Mat & Applicat Technol Hunan Prov, Key Lab Adv Funct Polymer Mat Coll, Xiangtan 411105, Hunan, Peoples R China 2.Xiangtan Univ, Univ Hunan Prov, Coll Chem, Xiangtan 411105, Hunan, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Dept Polymer Sci & Engn, Beijing 100871, Peoples R China 4.Peking Univ, Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys, Minist Educ, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, He-Lou,Liu, Yi-Xin,Zhong, Guan-Qun,et al. Design, Synthesis, and Multiple Hierarchical Ordering of a Novel Side-Chain Liquid Crystalline-Rod Diblock Copolymer[J]. MACROMOLECULES,2009,42(22):8774-8780. |
| APA | Xie, He-Lou,Liu, Yi-Xin,Zhong, Guan-Qun,Zhang, Hai-Liang,Chen, Er-Qiang,&Zhou, Qi-Feng.(2009).Design, Synthesis, and Multiple Hierarchical Ordering of a Novel Side-Chain Liquid Crystalline-Rod Diblock Copolymer.MACROMOLECULES,42(22),8774-8780. |
| MLA | Xie, He-Lou,et al."Design, Synthesis, and Multiple Hierarchical Ordering of a Novel Side-Chain Liquid Crystalline-Rod Diblock Copolymer".MACROMOLECULES 42.22(2009):8774-8780. |
入库方式： OAI收割
来源：化学研究所
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