Dependences of Confining Size and Interfacial Curvature on the Glass Transition of Polydimethylsiloxane in Self-Assembled Block Copolymers
文献类型：期刊论文
| 作者 | Huang, Zijie1; Jiang, Jing1; Shi, Lingying2; Wang, Xiaoliang1; Xue, Gi1; Li, Linling1; Shen, Zhihao2; Zhou, Dongshan1 |
| 刊名 | MACROMOLECULAR CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 219期号:3 |
| 关键词 | Block Copolymers Glass Transition Interfacial Curvature Polydimethylsiloxane Ultrafast Differential Scanning Calorimetry |
| ISSN号 | 1022-1352 |
| DOI | 10.1002/macp.201700518 |
| 英文摘要 | Lamellae (LAM), hexagonally packed cylinders (HEX), and double gyroid (GYR) phases of diblock copolymer polydimethylsiloxane-b-poly-2,5-bis(4-methoxyphenyl)-oxycarbonyl styrene (PDMS-b-PMPCS) can be obtained by controlling PMPCS length and thermal annealing conditions. This provides a system to study the glass transition of polymers under the well-defined confining geometries and interfacial physicochemical properties. By taking advantage of ultrafast differential scanning calorimeter, the glass transition temperature (T-g) of PDMS in the confined state is measured without destroying the nanophase structure sustained by the rigid PMPCS domains. Depending on the detailed confining geometry, the T-g and T-g breadth of PDMS show a clear difference by alternating the nanostructure and confining size. When annealing at higher temperatures, the decreases of T-g and T-g breadth with increasing confining size are observed, which are due to the subtle thermal expansion of block copolymer. Besides, the interfacial curvature effect on the T-g of PDMS is emphasized: the confining size dependence on T-g of PDMS block gradually becomes stronger as the interfacial curvature changes from negative (in GYR), to zero (in LAM) and to positive (in HEX). Such results explicitly elaborate the glass transition behavior of PDMS confined in block copolymer with various nanophase structures. |
| 语种 | 英语 |
| WOS记录号 | WOS:000424169200028 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45479]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Linling; Zhou, Dongshan |
| 作者单位 | 1.Nanjing Univ, Dept Polymer Sci & Engn, Sch Chem & Chem Engn,State Key Lab Coordinat Chem, Key Lab High Performance Polymer Mat & Technol,MO, Nanjing 210093, Jiangsu, Peoples R China 2.Peking Univ, Beijing Natl Lab Mol Sci, Dept Polymer Sci & Engn, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Zijie,Jiang, Jing,Shi, Lingying,et al. Dependences of Confining Size and Interfacial Curvature on the Glass Transition of Polydimethylsiloxane in Self-Assembled Block Copolymers[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2018,219(3). |
| APA | Huang, Zijie.,Jiang, Jing.,Shi, Lingying.,Wang, Xiaoliang.,Xue, Gi.,...&Zhou, Dongshan.(2018).Dependences of Confining Size and Interfacial Curvature on the Glass Transition of Polydimethylsiloxane in Self-Assembled Block Copolymers.MACROMOLECULAR CHEMISTRY AND PHYSICS,219(3). |
| MLA | Huang, Zijie,et al."Dependences of Confining Size and Interfacial Curvature on the Glass Transition of Polydimethylsiloxane in Self-Assembled Block Copolymers".MACROMOLECULAR CHEMISTRY AND PHYSICS 219.3(2018). |
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来源：化学研究所
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