Morphology evolution during polymer crystallization simultaneous calorimetric and optical measurements

被引：9

作者：

De Santis, F ^{[1
]}

Vietri, AR ^{[1
]}

Pantani, R ^{[1
]}

机构：

[1] Univ Salerno, Dept Chem & Food Engn, I-84084 Fisciano, SA, Italy

来源：

MACROMOLECULAR SYMPOSIA | 2006年 / 234卷

关键词：

calorimetry; crystallization; poly(propylene) (PP); spherulites;

D O I：

10.1002/masy.200650202

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 crystallization of the isotactic poly(propylene) (I-PP) has been studied carrying out measurements by means of a special calorimeter connected to a microscope and a digital acquisition system of images. To authors' knowledge, this is the first time that simultaneous calorimetric and optical measurements are carried out on polymers. The analysis of Polarized Optical Microscopy images has allowed the appraisal of nucleation density and growth rate in isothermal and non isothermal conditions. The results obtained in isothermal conditions have been analyzed through the Kolmogoroff model and the crystallinity calculated from the model has been compared with that obtained from the calorimetric measurements.

引用

页码：7 / 12

页数：6

共 3 条

[1] Crystallization kinetics and solidified structure in iPP under high cooling rates [J].