Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition

Huang, Hao; Liu, Shuang-Qing; Li, Cheng-Pei; Luo, Shi-Tianle; Zhao, Li-Sha; Cai, Yan-Hua

Hao Huang, Shuang-Qing Liu, Cheng-Pei Li, Shi-Tianle Luo, Li-Sha Zhao, Yan-Hua Cai

Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition

Abstract:
In this study, a new organic nucleating agent N, N'-bis(stearic acid)-1,4-dicarboxybenzene dihydrazide (PASH) to improve crystallization behavior of poly(L-lactic acid) (PLLA) along with the effect of PASH on melting behavior, thermal stability of PASH-nucleated PLLA was holistically reported. The melt-crystallization process illustrated that PASH as an effective heterogeneous nucleating agent could boost PLLA’s crystallization rate, but increasing PASH concentration and cooling rate conversely inhibited melt-crystallization process of PLLA in this study. With respect to melt-crystallization process, a larger amount of PASH leaded to a shift of cold-crystallization peak to lower temperature level. Isothermal crystallization revealed, in comparison to pure PLLA, that the half time of overall crystallization of PLLA/PASH was significantly decreased with PLLA containing 3 wt% PASH having the minimum t1/2= 67.3 s at 105şC. The different melting behaviors of PLLA/PASH under different conditions were attributed to the nucleating effect of PASH within PLLA. In particular, the melting behavior at a heating rate of 10°C/min after isothermal crystallization depended primarily on the crystallization temperature. Whereas, the impact of crystallization time on melting behavior was negligible. Nonetheless, the melting behavior was influenced by the heating rate after non-isothermal crystallization. The thermal stability of PLLA was detrimental with the addition of PASH owing to a typical drop in onset thermal decomposition temperature.

Keywords:
PLLA; organic nucleating agent; Non-isothermal crystallization; melting process; thermal stability

Issue: 2021 Volume 58, Issue 4

Pages: 73-83

Publication date: 2022/1/4

https://doi.org/10.37358/MP.21.4.5533

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Citation Styles

Cite this article as:
HUANG, H., LIU, S., LI, C., LUO, S., ZHAO, L., CAI, Y., Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition, Mater. Plast., 58(4), 2021, 73-83. https://doi.org/10.37358/MP.21.4.5533

Vancouver
Huang H, Liu S, Li C, Luo S, Zhao L, Cai Y. Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition. Mater. Plast.[internet]. 2021 Dec;58(4):73-83. Available from: https://doi.org/10.37358/MP.21.4.5533

APA 6th edition
Huang, H., Liu, S., Li, C., Luo, S., Zhao, L. & Cai, Y. (2021). Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition. Materiale Plastice, 58(4), 73-83. https://doi.org/10.37358/MP.21.4.5533

Harvard
Huang, H., Liu, S., Li, C., Luo, S., Zhao, L., Cai, Y. (2021). 'Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition', Materiale Plastice, 58(4), pp. 73-83. https://doi.org/10.37358/MP.21.4.5533

IEEE
H. Huang, S. Liu, C. Li, S. Luo, L. Zhao, Y. Cai, "Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition". Materiale Plastice, vol. 58, no. 4, pp. 73-83, 2021. [online]. https://doi.org/10.37358/MP.21.4.5533

Text
Hao Huang, Shuang-Qing Liu, Cheng-Pei Li, Shi-Tianle Luo, Li-Sha Zhao, Yan-Hua Cai,
Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition,
Materiale Plastice,
Volume 58, Issue 4,
2021,
Pages 73-83,
ISSN 2668-8220,
https://doi.org/10.37358/MP.21.4.5533.
(https://revmaterialeplastice.ro/Articles.asp?ID=5533)
Keywords: PLLA; organic nucleating agent; Non-isothermal crystallization; melting process; thermal stability

RIS
TY - JOUR
T1 - Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition
A1 - Huang, Hao
A2 - Liu, Shuang-Qing
A3 - Li, Cheng-Pei
A4 - Luo, Shi-Tianle
A5 - Zhao, Li-Sha
A6 - Cai, Yan-Hua
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2021
VL - 58
IS - 4
SP - 73
EP - 83
UR - https://doi.org/10.37358/MP.21.4.5533
KW - PLLA
KW - organic nucleating agent
KW - Non-isothermal crystallization
KW - melting process
KW - thermal stability
ER -

BibTex
@article{MatPlast2021P73,
author = {Huang Hao and Liu Shuang-Qing and Li Cheng-Pei and Luo Shi-Tianle and Zhao Li-Sha and Cai Yan-Hua},
title = {Poly (L-lactic acid) Modified by N, N'-bis(Stearic acid)-1,4-Dicarboxybenzene Dihydrazide: Studies of Crystallization, Melting Behavior and Thermal Decomposition},
journal = {Materiale Plastice},
volume = {58},
number = {4},
pages = {73-83},
year = {2021},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.21.4.5533},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5533}
}

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