Existence of a Glassy Layer in the Polymer-Nanosheet Interface: Evidence from Molecular Dynamics

被引：37

作者：

Gao, Yangyang ^{[1
,2
]}

Liu, Jun ^{[1
,2
]}

Zhang, Liqun ^{[1
,2
]}

Cao, Dapeng ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Key Lab Beijing City Preparat & Proc Novel Polyme, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

来源：

MACROMOLECULAR THEORY AND SIMULATIONS | 2014年 / 23卷 / 01期

基金：

国家高技术研究发展计划(863计划);

关键词：

glassy layer; interfacial gradient; molecular dynamics; nanosheet-polymer interface; MONTE-CARLO SIMULATIONS; LOCAL DYNAMICS; CARBON-BLACK; TRANSITION TEMPERATURE; MELT/SOLID INTERFACE; SEGMENTAL DYNAMICS; PARTICLE-SIZE; THIN-FILM; PLATES; NANOCOMPOSITES;

D O I：

10.1002/mats.201300127

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The interfacial polymer-nanosheet behavior is investigated to fully understand the interfacial interaction mechanism. The emphasis is placed on the discussion whether a polymer glassy layer in the proximity of the nanosheet exists or not. Results indicate that a polymer glassy layer actually exists near the nanosheet surface for strongly attractive interfacial interaction. Moreover, the glass transition temperatures at different interfacial interactions are explored, and a gradient of polymer chain dynamics near the nanosheet surface is observed. In short, this work provides a valuable reference for understanding polymer-nanosheet interfacial behavior.

引用

页码：36 / 48

页数：13

共 55 条

[1] Nanoscopic-confinement effects on local dynamics [J].