Influence of Side Chain Length on the Properties of Alkylated Copolymers Based on N-Methyl-N-Vinylacetamide

被引：0

作者：

Dommes, O. A. ^{[1
]}

Gosteva, A. A. ^{[1
]}

Kolbina, G. F. ^{[1
]}

Okatova, O. V. ^{[1
]}

Gavrilova, I. I. ^{[1
]}

Panarin, E. F. ^{[1
,2
]}

Pavlov, G. M. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Inst Macromol Cpds, Bolshoy Pr 31, St Petersburg 199004, Russia

[2] Peter Great St Petersburg Polytech Univ, Dept Med Phys & Bioengn, Polytech Skaya Str 29, St Petersburg 195251, Russia

[3] St Petersburg State Univ, Univ Skaya Nab 7-9, St Petersburg 199034, Russia

来源：

INTERNATIONAL CONFERENCE BALTIC POLYMER SYMPOSIUM 2018 | 2019年 / 500卷

关键词：

POLYELECTROLYTES; MACROMOLECULES;

D O I：

10.1088/1757-899X/500/1/012017

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of alkylated statistical copolymers of N-methyl-N-vinylacetamide and N-methyl-N-vinylamine hydrochloride containing C6H13 - C12H25 side aliphatic group in the chain were studied by the methods of molecular hydrodynamics (velocity sedimentation, translational diffusion and viscous flow) in 0.1M NaCl and salt free water solutions, and by flow birefringence. The competition between electrostatic and hydrophilic/hydrophobic interactions manifests differently depending on the ionic strength and the length of the side chains. It was found that the radical length noticeably affects the characteristics of copolymer macromolecules. The hydrodynamic volume decreases and the shear stress optical coefficient increases considerably for the samples with C12H25 side chain groups. This is explained by drastic increase in the hydrophobic interactions which dominate over the electrostatic interactions.

引用

页数：6

共 14 条

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