Thermal control over the topology of cleavable polymers: From linear to hyperbranched structures

被引：118

作者：

Hong, Chun-Yan ^{[1
]}

You, Ye-Zi

Wu, De-Cheng

Liu, Ye

Pan, Cai-Yuan

机构：

[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China

[2] Hefei Univ Technol, Dept Polymer Sci & Engn, Hefei 230009, Anhui, Peoples R China

[3] Inst Mat Res & Engn, Singapore 117602, Singapore

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 17期

关键词：

D O I：

10.1021/ja070871+

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

We found that the topology of cleavable polymer from linear to hyperbranched can be tuned simply by varying the polymerization temperature: linear polymers were produced at temperatures <= 40 degrees C, hyperbranched polymers were obtained at elevated temperatures (>= 48 degrees C); the degree of branching (DB) of hyperbranched polymers increased with the increase of temperature. Furthermore, the produced linear and hyperbranched polymers contain stimuli-sensitive disulfide bonds in the backbone that can be easily cleaved into small organic molecules in the presence of DTT.

引用

页码：5354 / +

页数：3

共 33 条

[1]

BREITMAIER E, 1987, CARBON 13 NMR SPECTR, pCH4

[2]

Synthesis of functional olefin copolymers with controllable topologies using a chain-walking catalyst [J].