Deformation Behavior of sphere-forming trifunctional multigraft copolymer

被引：19

作者：

Duan, Yongxin ^{[1
,3
]}

Rettler, Erik ^{[2
]}

Schneider, Konrad ^{[3
]}

Schlegel, Ralf ^{[1
]}

Thunga, Mahendra ^{[1
,3
]}

Weidisch, Roland ^{[1
,3
]}

Siesler, Heinz W. ^{[2
]}

Stamm, Manfred ^{[3
]}

Mays, Jimmy W. ^{[4
]}

Hadjichristidis, N. ^{[5
]}

机构：

[1] Univ Jena, Inst Mat Sci & Technol, D-07743 Jena, Germany

[2] Univ Duisburg Essen, Dept Phys Chem, D-45117 Essen, Germany

[3] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

[4] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[5] Univ Athens, Dept Chem, GR-10680 Athens, Greece

来源：

MACROMOLECULES | 2008年 / 41卷 / 13期

关键词：

D O I：

10.1021/ma801036y

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Deformation behavior of sphere-forming trifunctional micrograft (MG) copolymer by synchrotron SAXS and rheo-optical FT-IR, on nanometer size scales and molecular level, was studied. The sample polymer films with gauge dimensions of 7×4 mm2 and a thickness of 30-40 mm were uniaxially stretched at constant strain rate of 3.2 mm/min. The presence of single first-order scattering at 0% strain indicates the presence of phase-separated spherical morphology. The molecular architecture of tri- and tetrafunctional MG copolymers determines the difference of their deformation. The results also show that the MG copolymer has a heterogeneous phase-separated structure with spherical morphology and the collective deformation from the heterogeneous phases is characterized by observing the selective orientation in the individual phases.

引用

页码：4565 / 4568

页数：4

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