Etude de la structure ramifiée du polyéthylène basse densité par viscosité et diffusion de la lumière de fractions issues de la chromatographie d'exclusion gpc

Wiley - Tập 184 Số 1 - Trang 135-145 - 1983
Marius Hert1, Claude Strazielle2
1Centre de Recherches Nord, CdF, B. P. No 1 62160 Bully‐les Mines, France
2Centre de Recherches sur les Macromolécules (CNRS), 6 rue Boussingault, 67083 Strasbourg Cedex, France

Tóm tắt

AbstractFractions of high density polyethylene (PEhd) and low density polyethylene (PEld) obtained from gel permeation chromatography were studied by viscometry and light scattering. The variations of the intrinsic viscosity [η], the molecular weight M̄w, and the radius of gyration Rg for PEhd and PEld were compared with one another and the relationships [η] vs M and Rg vs. M for PEhd were established. The dependence of structural parameters g = (Rg2)branch/(Rg2)linear and g′ = [η]branch/[η]linear on the molecular weight was determined for three samples of PEld.

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Tài liệu tham khảo

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10.1002/macp.1972.021550124

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Wiley

Tập 184 Số 1

135-145

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