Polymer dynamics at low molecular weight of poly(butylene oxide) star polymers.

• Tác giả: Karin J Bichler, Bruno Jakobi, Gerald J Schneider
• Ngôn ngữ: eng
• Ký hiệu phân loại: 070.194 Radio
• Thông tin xuất bản: England : Soft matter , 2025
• Bộ sưu tập: NCBI
• ID: 186393

Tóm tắt

Star polymers are an interesting class of polymers to study based on their shape and dynamics. We use complementary techniques to study the polymer dynamics of star polymers with shorter side chains and compare them with linear counterparts. Using dielectric spectroscopy and rheology allows the extraction of the critical molecular weight using two different approaches. Furthermore, the reduction of the dielectric normal mode relaxation time shows a temperature as well as molecular weight dependent factor. Based on our dielectric spectroscopy results and taking as the limiting case based on theory, a temperature of