How Big Is Big Enough? Effect of Length and Shape of Side Chains on the   Single-Chain Enthalpic Elasticity of a Macromolecule

doi:10.1021/acs.macromol.6b00247

CORC > 北京大学 > 化学与分子工程学院

	How Big Is Big Enough? Effect of Length and Shape of Side Chains on the Single-Chain Enthalpic Elasticity of a Macromolecule
	Luo, Zhonglong ; Zhang, Afang ; Chen, Yongming ; Shen, Zhihao ; Cui, Shuxun
刊名	MACROMOLECULES
	2016
关键词	MOLECULE FORCE SPECTROSCOPY MECHANICAL UNFOLDING PATHWAY ANGLE NEUTRON-SCATTERING NATURAL CELLULOSE STRANDED-DNA DENDRONIZED POLYMERS PROTEIN MECHANICS MICROSCOPY POLYELECTROLYTE LEVEL
DOI	10.1021/acs.macromol.6b00247
英文摘要	Polymers with a carbon-carbon (C-C) backbone are an important class of polymers, which can be regarded as the derivatives of polyethylene (PE). To investigate the effect of side chains on the single chain enthalpic elasticity (SCEE) of polymers with a C-C backbone, several polymers with pendants or side chains of different lengths and shapes have been studied by single-molecule AFM. We find that both length and shape of the side chains count: only the side chains that are both long and bulky (i.e., bulky dendrons of second or higher generation as side chains) affect the SCEE. Thus, only rare polymers have special SCEE. For the vast majority of polymers, the SCEE is identical to that of PE, which means that the SCEE is determined by the nature of the C-C backbone. It is expected that this conclusion can also be popularized to all polymers with various backbones. This study is an important update to the understanding of polymers at the single-chain level.; Natural Science Foundation of China [21222401, 21574106]; SCI(E); ARTICLE; cuishuxun@swjtu.edu.cn; 9; 3559-3565; 49
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438187]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Luo, Zhonglong,Zhang, Afang,Chen, Yongming,et al. How Big Is Big Enough? Effect of Length and Shape of Side Chains on the Single-Chain Enthalpic Elasticity of a Macromolecule[J]. MACROMOLECULES,2016.
APA	Luo, Zhonglong,Zhang, Afang,Chen, Yongming,Shen, Zhihao,&Cui, Shuxun.(2016).How Big Is Big Enough? Effect of Length and Shape of Side Chains on the Single-Chain Enthalpic Elasticity of a Macromolecule.MACROMOLECULES.
MLA	Luo, Zhonglong,et al."How Big Is Big Enough? Effect of Length and Shape of Side Chains on the Single-Chain Enthalpic Elasticity of a Macromolecule".MACROMOLECULES (2016).