Abstract
The size of spherulites observed in the poly(butylene succinate-co-adipate) (PBSA) gel was found to be effectively controlled by the careful selection of the types of solvent and the gel preparation temperature. Additionally, the degradation behavior of the PBSA dried-gels with different sizes of spherulites was studied. By using different solvents, such as toluene (TOL), o-dichlorobenzene (o-DCB), and cyclohexanone (CHN), the diameter of the spherulites could be changed from 16.7 μm to 186.2 μm, while the gel preparation temperature was kept constant at 28 °C. The gel preparation temperature was then changed from −50 °C to 28 °C using CHN, and it was found that the diameter of the spherulites changed from 25.2 μm to 186.2 μm. Regarding the degradation behavior, the PBSA dried-gel with relatively smaller spherulites (∼20 μm in diameter) exhibited higher weight loss of over 80% at the immersion time of 6 days, while the PBSA dried-gels with relatively larger spherulites (∼186 μm in diameter) presented lower weight loss of below 30% at the immersion time of 6 days. It was therefore concluded that the degradation rate became lower with the increase in the size of spherulites.
| Original language | English |
|---|---|
| Pages (from-to) | 106-111 |
| Number of pages | 6 |
| Journal | Polymer Degradation and Stability |
| Volume | 162 |
| DOIs | |
| Publication status | Published - 2019 Apr 1 |
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Keywords
- Degradation
- Gel
- Poly(butylene succinate-co-adipate)
- Spherulite
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Polymers and Plastics
- Materials Chemistry
Cite this
Controlling the size of spherulite and the degradation of poly(butylene succinate-co-adipate) by solvent and gel preparation temperature. / Yamazaki, Hana; Kamitabira, Saya; Maeda, Tomoki; Hotta, Atsushi.
In: Polymer Degradation and Stability, Vol. 162, 01.04.2019, p. 106-111.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Controlling the size of spherulite and the degradation of poly(butylene succinate-co-adipate) by solvent and gel preparation temperature
AU - Yamazaki, Hana
AU - Kamitabira, Saya
AU - Maeda, Tomoki
AU - Hotta, Atsushi
PY - 2019/4/1
Y1 - 2019/4/1
N2 - The size of spherulites observed in the poly(butylene succinate-co-adipate) (PBSA) gel was found to be effectively controlled by the careful selection of the types of solvent and the gel preparation temperature. Additionally, the degradation behavior of the PBSA dried-gels with different sizes of spherulites was studied. By using different solvents, such as toluene (TOL), o-dichlorobenzene (o-DCB), and cyclohexanone (CHN), the diameter of the spherulites could be changed from 16.7 μm to 186.2 μm, while the gel preparation temperature was kept constant at 28 °C. The gel preparation temperature was then changed from −50 °C to 28 °C using CHN, and it was found that the diameter of the spherulites changed from 25.2 μm to 186.2 μm. Regarding the degradation behavior, the PBSA dried-gel with relatively smaller spherulites (∼20 μm in diameter) exhibited higher weight loss of over 80% at the immersion time of 6 days, while the PBSA dried-gels with relatively larger spherulites (∼186 μm in diameter) presented lower weight loss of below 30% at the immersion time of 6 days. It was therefore concluded that the degradation rate became lower with the increase in the size of spherulites.
AB - The size of spherulites observed in the poly(butylene succinate-co-adipate) (PBSA) gel was found to be effectively controlled by the careful selection of the types of solvent and the gel preparation temperature. Additionally, the degradation behavior of the PBSA dried-gels with different sizes of spherulites was studied. By using different solvents, such as toluene (TOL), o-dichlorobenzene (o-DCB), and cyclohexanone (CHN), the diameter of the spherulites could be changed from 16.7 μm to 186.2 μm, while the gel preparation temperature was kept constant at 28 °C. The gel preparation temperature was then changed from −50 °C to 28 °C using CHN, and it was found that the diameter of the spherulites changed from 25.2 μm to 186.2 μm. Regarding the degradation behavior, the PBSA dried-gel with relatively smaller spherulites (∼20 μm in diameter) exhibited higher weight loss of over 80% at the immersion time of 6 days, while the PBSA dried-gels with relatively larger spherulites (∼186 μm in diameter) presented lower weight loss of below 30% at the immersion time of 6 days. It was therefore concluded that the degradation rate became lower with the increase in the size of spherulites.
KW - Degradation
KW - Gel
KW - Poly(butylene succinate-co-adipate)
KW - Spherulite
UR - http://www.scopus.com/inward/record.url?scp=85061824101&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061824101&partnerID=8YFLogxK
U2 - 10.1016/j.polymdegradstab.2019.02.014
DO - 10.1016/j.polymdegradstab.2019.02.014
M3 - Article
AN - SCOPUS:85061824101
VL - 162
SP - 106
EP - 111
JO - Polymer Degradation and Stability
JF - Polymer Degradation and Stability
SN - 0141-3910
ER -