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DOI | 10.1126/science.aan6837 |
Single polymer growth dynamics | |
Liu, Chunming1; Kubo, Kaori1; Wang, Endian2; Han, Kyu-Sung1,3; Yang, Feng1; Chen, Guanqun1; Escobedo, Fernando A.2; Coates, Geoffrey W.1; Chen, Peng1 | |
2017-10-20 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6361页码:352-355 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; South Korea |
英文摘要 | In chain-growth polymerization, a chain grows continually to reach thousands of subunits. However, the real-time dynamics of chain growth remains unknown. Using magnetic tweezers, we visualized real-time polymer growth at the single-polymer level. Focusing on ring-opening metathesis polymerization, we found that the extension of a growing polymer under a pulling force does not increase continuously but exhibits wait-and-jump steps. These steps are attributable to the formation and unraveling of conformational entanglements from newly incorporated monomers, whose key features can be recapitulated with molecular dynamics simulations. The configurations of these entanglements appear to play a key role in determining the polymerization rates and the dispersion among individual polymers. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413251000039 |
WOS关键词 | OPENING METATHESIS POLYMERIZATION ; MOLECULE ; FORCE ; CATALYSTS ; DNA ; POTENTIALS ; NORBORNENE ; MICROSCOPY ; SEPARATION ; TWEEZERS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/197148 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14583 USA; 2.Cornell Univ, Dept Chem & Biomol Engn, Ithaca, NY 14853 USA; 3.Korea Inst Ceram Engn & Technol, Ceramicware Ctr, Icheon 17303, South Korea |
推荐引用方式 GB/T 7714 | Liu, Chunming,Kubo, Kaori,Wang, Endian,et al. Single polymer growth dynamics[J]. SCIENCE,2017,358(6361):352-355. |
APA | Liu, Chunming.,Kubo, Kaori.,Wang, Endian.,Han, Kyu-Sung.,Yang, Feng.,...&Chen, Peng.(2017).Single polymer growth dynamics.SCIENCE,358(6361),352-355. |
MLA | Liu, Chunming,et al."Single polymer growth dynamics".SCIENCE 358.6361(2017):352-355. |
条目包含的文件 | 条目无相关文件。 |
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