Thermodynamic Properties of a First-Generation Carbosilane Dendrimer with Terminal Phenylethyl Groups

被引：7

作者：

Sologubov, S. S. ^{[1
]}

Markin, A. V. ^{[1
]}

Smirnova, N. N. ^{[1
]}

Novozhilova, N. A. ^{[2
]}

Tatarinova, E. A. ^{[2
]}

Muzafarov, A. M. ^{[3
]}

机构：

[1] Lobachevsky State Univ, Nizhnii Novgorod 603950, Russia

[2] Russian Acad Sci, Enikolopov Inst Synthet Polymer Mat, Moscow 117393, Russia

[3] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2018年 / 92卷 / 02期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

carbosilane dendrimers; adiabatic vacuum calorimetry; differential scanning calorimetry; heat capacity; glass transition; thermodynamic functions; 6TH GENERATIONS; POLYMERS; MACROMOLECULES; HEAT; 3RD; CHEMISTRY; RANGE;

D O I：

10.1134/S0036024418010260

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The heat capacity of a first-generation carbosilane dendrimer with terminal phenylethyl groups as a function of temperature in the range from 6 to 520 K is studied for the first time via precision adiabatic vacuum calorimetry and differential scanning calorimetry. Physical transformations, such as low-temperature structural anomaly and glass transition are detected in the above-mentioned range of temperatures, and their standard thermodynamic characteristics are determined and analyzed. The standard thermodynamic functions of the studied dendrimer in the range of T -> 0 to 520 K are calculated from the experimental data, as is the standard entropy in the devitrified state at T = 298.15 K. The standard thermodynamic characteristics of the carbosilane dendrimers studied in this work and earlier are compared.

引用

页码：235 / 243

页数：9

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