Detailed Analysis of Glass Transition Temperature on Polymer Blends with Hydrogen Bonding

Yasue, Ayaka; Okada, Yuki; Urakawa, Osamu; Inoue, Tadashi

doi:10.2472/jsms.64.43

Cited by 1 publication

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This suggests that the 2VPy and VPh prefer to form 1:1 complexes in dioxane solutions. The amounts of precipitates, i.e., conversions, were also the highest for the 1:1 feed solutions, supporting the idea that 1:1 complex formation is favorable [38]. These results are in harmony with the data reported by Dai et al who used ethanol solutions of 2VPy and VPh to obtain the precipitates [18].…”

Section: Resultssupporting

confidence: 84%

“…The w 2VPy dependence of T g for 2VPy40/VPh16 was fitted with the Kwei equation (Equation (1)) in our previous study [38]. In Figure 3, the fitting results is again shown.…”

Section: Resultsmentioning

confidence: 80%

“… (a) This is the similar series of samples used in reference [37]. We previously reported a wrong number for the molecular weight [38]. (b) Determined from the intrinsic viscosity (viscosity averaged molecular weight).…”

Section: Figurementioning

confidence: 99%

See 2 more Smart Citations

Glass Transition Behaviors of Poly (Vinyl Pyridine)/Poly (Vinyl Phenol) Revisited

Urakawa

Yasue

2019

Polymers

Self Cite

View full text Add to dashboard Cite

We examined the composition and molecular weight dependence of the glass transition temperature in detail for two types of hydrogen bonding miscible blends: poly (2-vinyl pyridine)/poly (vinyl phenol) (2VPy/VPh) and poly (4-vinyl pyridine)/poly (vinyl phenol) (4VPy/VPh). Regarding the functional form of the glass transition temperature, Tg, as a function of the weight fraction, we found a weak deviation from the Kwei equation for 2VPy/VPh blends. In contrast, such a deviation was not observed for the 4VPy/VPh blend. By relating the difference in the functional forms of Tg between the two blend systems to the difference in hydrogen bonding ability, we proposed a modified version of the Kwei equation. As for the interaction parameter, q in the Kwei equation, clear molecular weight dependence was observed for 2VPy/VPh blends: the lower the VPh molecular weight in the oligomer level, the higher the q values, suggesting the higher hydrogen bonding formability near the polymer chain ends than the middle part of a polymer chain.

show abstract

Section: Resultssupporting

confidence: 84%

“…The w 2VPy dependence of T g for 2VPy40/VPh16 was fitted with the Kwei equation (Equation (1)) in our previous study [38]. In Figure 3, the fitting results is again shown.…”

Section: Resultsmentioning

confidence: 80%