Contents

Polymer Science, Series A

Vol. 68, No. 1, 2026

STRUCTURE AND PROPERTIES

Pore Growth during Stretching of Polymerization-Filled Polyethylene

S. S. Gusarov, O. I. Kudinova, S. L. Bazhenov, A. A. Gulin, and L. A. Novokshonova p. 1  abstract

INVESTIGATION METHODS

Digital Pixel Intensity as a Proxy for DSC Features in the Optical Thermal Analysis of Isotactic Polystyrene

Al Mamun, Abbas Ghanbari, and Gary S. Coombs p. 2  abstract

THEORY AND SIMULATION

Molecular Dynamic Analysis of Intramolecular Mobility in Polyimides

V. Ryzhikh, N. Belov, N. Balabaev, M. Mazo, and R. Khudobin p. 3  abstract

NATURAL POLYMERS

Extraction of Portunus Trituberculatus Chitosan and Their Characteristics

A. T. Abdurasulov, Sh. Sh. Khudoyberdiyev, N. R. Vokhidova, and S. Sh. Rashidova p. 4  abstract

POLYMER MEMBRANES

Effect of Polyvinyl alcohol (PVA) on the CO2/He Separation Performance of PVA/Sodium Polyacrylate Membranes

Fuminori Ito and Hidetaka Yamada p. 5  abstract