What question did this study set out to answer?

The aim is to understand the crystallization behavior in oriented diblock copolymers containing polyethylene and different amorphous blocks.

January 1, 1996Macromolecules

Crystallization in Oriented Semicrystalline Diblock Copolymers

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The aim is to understand the crystallization behavior in oriented diblock copolymers containing polyethylene and different amorphous blocks.
Utilized simultaneous small-angle and wide-angle X-ray scattering (SAXS/WAXS) to study crystallization.
Analyzed symmetric and asymmetric diblocks with varying compositions of polyethylene.
Observed scattering patterns to deduce crystallite orientation and correlations.
In symmetric diblocks, PE crystallization results in chains parallel to the lamellar interface with distinct scattering patterns.
Asymmetric diblocks exhibit a stable lamellar structure that melts to a hexagonal-packed cylinder structure in specified samples.
Diffuse scattering indicates lateral correlations between crystallites in glassy blocks, contrasted with amorphous components showing no correlations.

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Randomized trial investigates crystallization patterns in diblock copolymers, suggesting structures affect material properties.

Hamley et al. (1996) studied this question.

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