Morphology investigation of stereoblock polypropylene elastomer

被引：27

作者：

Kravchenko, RL ^{[1
]}

Sauer, BB ^{[1
]}

McLean, RS ^{[1
]}

Keating, MY ^{[1
]}

Cotts, PM ^{[1
]}

Kim, YH ^{[1
]}

机构：

[1] DuPont Co Inc, Cent Res & Dev, Expt Stn, Wilmington, DE 19880 USA

来源：

MACROMOLECULES | 2000年 / 33卷 / 01期

关键词：

D O I：

10.1021/ma9915531

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Various techniques were applied to study thermoplastic elastomeric polypropylene derived from oscillating bis(2-phenylindenyl)zirconocene in order to provide information on the morphology of this stereoblock polymer. Multiple melting fractions in the differential scanning calorimetry scans of thermally fractionated samples characterized the polydispersity of the crystallizable block lengths. Crystal morphologies of these materials and their change during and after tensile extension were observed using atomic force microscopy (AFM). In addition, AFM and acid digestion studies provided estimated of the crystallizable sequence lengths in these elastomers.

引用

页码：11 / 13

页数：3

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