The results of Fourier transform infrared (FTIR) spectroscopy demonstrated that the blends were homogeneous mixtures of PDLLA and PEG.
The uncured blends were homogeneous and the Tg-composition behaviour was predicted using Fox, Gordon Taylor and Kelley Bueche equations.
Injection-moulded semicrystalline nylon 6 and amorphous nylon 6IcoT blends were homogeneous (single glass transition, Tg) but metastable.
The blends were homogeneous regardless of the amount of IL and the glass transition temperature (Tg) shifted to lower temperatures as the IL content was increased.
Each of the complexes and blends showed one composition-dependent glass transition temperature (Tg), indicating that both the complexes and the blends are homogeneous on a scale of 10 30 nm.
Measurement of the proton spin lattice relaxation time in the rotating frame, (TH1ρ), reveals that all diblock copolymers and blends possess one composition-dependent TH1ρ, indicating that both diblock copolymers and blends are homogeneous, which is consistent with the DSC analysis.
Measurements of the proton spin lattice relaxation time in the rotating frame, T1ρ(H), reveal that each of the complexes and blends has one composition-dependent T1ρ(H), indicating that both the complexes and the blends are homogeneous on a scale of 1 3 nm.
High resolution 13C CP/MAS solid-state NMR analyses indicate that the spin-lattice relaxation time (T1ρH) in all PBPMA blends are homogeneous on the scale at which spin-diffusion occurs within the time T1ρH, also due to the enhancement by substituent inductive delocalization.
Indeed, PLA/P1 blends were homogeneous despite P1 relatively high Mw of 9,500 g mol−1.
Neither group was homogeneous.
