TSC study of length ester side group effect on sub-vitreous relaxations in poly(n-alkyl methacrylates)

被引：14

作者：

Dudognon, E ^{[1
]}

Bernès, A ^{[1
]}

Lacabanne, C ^{[1
]}

机构：

[1] Univ Toulouse 3, Lab Phys Polymeres, F-31062 Toulouse 04, France

来源：

POLYMER | 2002年 / 43卷 / 19期

关键词：

thermo-stimulated currents; poly(n-alkyl methacrylates); dielectric relaxations;

D O I：

10.1016/S0032-3861(02)00395-6

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 comparative study by thermo-stimulated currents (TSC) of three poly(n-alkyl methacrylates) is performed. TSC complex spectra exhibit two dipolar relaxations considered in the following: the glass relaxation and a secondary relaxation related to motion of ester side groups. For each sample, the fractional polarisations protocol is applied to describe the fine structure of these complex spectra. It allows us to define the evolution of activation parameters with temperature. The influence of side chain architecture is then considered. It emphasises that the P mode is independent of the ester group length. On the contrary, the a mode is highly sensitive to structural change. These results are finally explained in terms of molecular mobility. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：5175 / 5179

页数：5

共 44 条

[21] EFFECT OF THE LENGTH OF THE N-ALKYL SUBSTITUENT IN POLY-4-VINYLPYRIDINIUM CATION ON STABILITY OF POLY-ELECTROLYTE COMPLEXES
IZUMRUDOV, VA
BRONICH, TK
ZEZIN, AB
KABANOV, VA
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA B, 1989, 31 (05): : 326 - 327
[22] POLY-ALPHA-N-ALKYL ACRYLIC DERIVATIVES - SYNTHESIS, INFLUENCE OF MOLECULAR-WEIGHT AND N-ALKYL GROUP LENGTH ON PHYSICAL AND PHYSICOCHEMICAL PROPERTIES
BUREL, F
COUVERCELLE, JP
BUNEL, C
SAITER, JM
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, 1995, A32 (06): : 1091 - 1102
[23] Wettability of maleimide copolymer films:: Effect of the chain length of n-alkyl side groups on the solid surface tension
Grundke, K
Zschoche, S
Pöschel, K
Gietzelt, T
Michel, S
Friedel, P
Jehnichen, D
Neumann, AW
MACROMOLECULES, 2001, 34 (19) : 6768 - 6775
[24] EFFECT OF THE LENGTH OF N-ALKYL SIDE GROUPS ON THE MICROSTRUCTURE AND STEREOCHEMISTRY OF METHACRYLONITRILE ALKYL METHACRYLATE COPOLYMERS SYNTHESIZED BY FREE-RADICAL POLYMERIZATION
VAZQUEZ, B
VALERO, M
GUZMAN, GM
ROMAN, JS
POLYMER, 1993, 34 (08) : 1755 - 1760
[25] Effect of the length of n-alkyl side groups on the microstructure and stereochemistry of methacrylonitrile-alkyl methacrylate copolymers synthesized by free radical polymerization
1755, Publ by Butterworth-Heinemann Ltd, Oxford, Engl (34):
[26] N-(n-Alkyl)-2-pyridinemethanimine mediated atom transfer radical polymerization of lauryl methacrylate: Effect of length of alkyl group
Srivastava, Pravin Kumar
Choudhary, Veena
JOURNAL OF APPLIED POLYMER SCIENCE, 2012, 125 (01) : 31 - 37
[27] Effect of Sophorolipid n-Alkyl Ester Chain Length on Its Interfacial Properties at the Almond Oil-Water Interface
Koh, Amanda
Linhardt, Robert J.
Gross, Richard
LANGMUIR, 2016, 32 (22) : 5562 - 5572
[28] Mechanical reinforcement of polyethylene using n-alkyl group-functionalized multiwalled carbon nanotubes: Effect of alkyl group carbon chain length and density
Wei, Li
Jiang, Wenchao
Goh, Kunli
Chen, Yuan
POLYMER ENGINEERING AND SCIENCE, 2014, 54 (02): : 336 - 344
[29] Structural Study on Aromatic Poly(amic n-alkyl ester)s and Their Derivatives by Solid-State Imidization I. Effect of Alkyl Chains on the Structure Change
Inomata, Katsuhiro
Shimomura, Sachi
Ogiso, Marika
Hasegawa, Hiroyasu
Sugimoto, Hideki
Nakanishi, Eiji
SEN-I GAKKAISHI, 2008, 64 (10) : 273 - 278
[30] Structural study on aromatic poly(amic n-alkyl ester)s and their derivatives by solid-state imidization II. Effect of unremoved alkyl chains attached by ether linkage
Faculty of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
Sen'i Gakkaishi, 2008, 10 (279-283)

← 1 2 3 4 5 →