Crystallization kinetics of high-density polyethylene copolymers containing 1-butene and 1-hexene were investigated using differential scanning calorimetry (DSC), in-situ wide-angle X-ray diffraction (WAXD), and in-situ small-angle light scattering (SALS). Compared to 1-hexene copolymers, 1-butene copolymers exhibit slower isothermal crystallization, reduced spherulite growth, and higher lamellar surface free energy (σf), highlighting the pronounced impact of comonomer type on nucleation thermodynamics and lamellar development.
- Wonchalerm Rungswang
- Chatchai Jarumaneeroj
- Supagorn Rugmai