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Citation: Luo Chunyan, Zhang Pan, Yan Bo, Yang Minrui, Li Shoujia, Tang Feng, Fu Yuqiao, Chen Weixing. Crystallization Behavior of Poly(L-lactic acid)/Poly(D, L-lactic acid) Blends[J]. Chemistry, ;2019, 82(6): 549-554. shu

Crystallization Behavior of Poly(L-lactic acid)/Poly(D, L-lactic acid) Blends

School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021

Received Date: 31 December 2018
Accepted Date: 16 February 2019

Figures(12)

The existence of amorphous ploy(D, L-Lactic acid) (PDLLA) will influence the crystallization behavior of Ploy(L-Lactic acid) (PLLA). In this work, the differential scanning calorimeter (DSC) and polarizing optical microscope (POM) were used to investigate the crystallization behavior of PLLA/PDLLA blends with different molecular weights and compositions. When the molecular weight of PDLLA is small, the spherulite characteristics of PLLA are obviously destroyed. When the molecular weight of blending PDLLA is large, PLLA is more likely to maintain the spherulitic characteristics, and it is easy to form a ring-shaped spherulitic morphology. It is depending on the degree of matching between the crystallization rate and the diffusion rate of the amorphous component. The maximum growth rate appears at lower temperature while blending with PDLLA that have smaller molecular weight.
- Ploy(L-Lactic acid) (PLLA),
- Ploy(D, L-Lactic acid)(PDLLA),
- Blends,
- Crystallization behavior,
- Ring-banded spherulites
1. [1]
  J Xu, B H Guo, J J Zhou et al. Polymer, 2005, 46: 9176~9185.
2. [2]
  C Gao, X Bao, L Yu et al. J. Appl. Polym. Sci., 2014, 131: 205~212.
3. [3]
  H Tsuji, Y Ikada. Polymer, 1996, 37: 595~602.
4. [4]
  L Bouapao, H Tsuji, K Tashiro et al. Polymer, 2009, 50: 4007~4017.
5. [5]
6. [6]
7. [7]
  Y Li, S Xin, Y Bian et al. RSC Adv., 2015, 5: 24352~24362.
8. [8]
  Y Li, C Han, Y Bian et al. Thermochim. Acta, 2014, 580: 53~62.
9. [9]
  Y Li, C Han, X Zhang et al. Thermochim. Acta, 2013, 573: 193~199.
10. [10]
  H Tsuji, M Ogawa, Y Arakawa. J. Phys. Chem. B, 2016, 120: 11052~11063.
11. [11]
  H D Keith, F J Padden. J. Appl. Phys., 1963, 34: 2409~2421.
12. [12]
  H D Keith, F J Padden. Polymer, 1986, 27: 1463~1471.
13. [13]
  R Wellscheid, J Wüst, B J Jungnickel. J. Polym. Sci. B, 1996, 34: 893~900.
14. [14]
1. [1]
  Zongfei YANG , Xiaosen ZHAO , Jing LI , Wenchang ZHUANG . Research advances in heteropolyoxoniobates. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 465-480. doi: 10.11862/CJIC.20230306
2. [2]
  Dongdong Yao , JunweiGu , Yi Yan , Junliang Zhang , Yaping Zheng . Teaching Phase Separation Mechanism in Polymer Blends Using Process Representation Teaching Method: A Teaching Design for Challenging Theoretical Concepts in “Polymer Structure and Properties” Course. University Chemistry, 2025, 40(4): 131-137. doi: 10.12461/PKU.DXHX202408125
3. [3]
  Hong Zheng , Xin Peng , Chunwang Yi . The Tale of Caprolactam Cyclic Oligomers: The Ever-changing Life of “Princess Cyclo”. University Chemistry, 2024, 39(9): 40-47. doi: 10.12461/PKU.DXHX202403058
4. [4]
  Lanjun Cheng , Xinyuan Wang , Jie An , Xiang Wu , Chengfeng Zhu , Yanming Fu , Yougui Li . Improvement of the Resolution Experiment of Racemic Tartaric Acid. University Chemistry, 2025, 40(7): 277-285. doi: 10.12461/PKU.DXHX202408010
5. [5]
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6. [6]
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7. [7]
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8. [8]
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9. [9]
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10. [10]
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11. [11]
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12. [12]
  Chengcheng Yuan , Wei Xia , Jun Wang , Xiaofeng Zhu , Yong Zhang , Bicheng Zhu , Jiaguo Yu . A dual-functional single-atom modified SnS₂/CdS S-scheme photocatalyst for synergistic hydrogen production and lactic acid oxidation: A DFT study. Acta Physico-Chimica Sinica, 2026, 42(6): 100244-0. doi: 10.1016/j.actphy.2026.100244
13. [13]
  Hongxia Yan , Rui Wu , Weixu Feng , Yan Zhao , Yi Yan . Innovation Inspired by Classical Chemistry: Luminescent Hyperbranched Polysiloxanes. University Chemistry, 2025, 40(4): 154-159. doi: 10.12461/PKU.DXHX202409010
14. [14]
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15. [15]
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16. [16]
  Leyu DING , Ying HE , Zhihe WEI , Yang PENG , Zhao DENG . Conductive polypyrrole-confined Co-MOF-74 for high-performance lithium metal anodes. Chinese Journal of Inorganic Chemistry, 2025, 41(12): 2491-2502. doi: 10.11862/CJIC.20250176
17. [17]
  Qiaorong RU . Synthesis and characterization of tripyridine functionalized polyionic liquid luminescent materials. Chinese Journal of Inorganic Chemistry, 2026, 42(1): 111-119. doi: 10.11862/CJIC.20250121
18. [18]
  Xin Han , Zhihao Cheng , Jinfeng Zhang , Jie Liu , Cheng Zhong , Wenbin Hu . Design of Amorphous High-Entropy FeCoCrMnBS (Oxy) Hydroxides for Boosting Oxygen Evolution Reaction. Acta Physico-Chimica Sinica, 2025, 41(4): 100033-0. doi: 10.3866/PKU.WHXB202404023
19. [19]
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20. [20]
  Yan Xiao , Shuling Li , Yifan Li , Jianing Fan , Linlin Shi . Discovering the Beauty of Life: Adding Some “Ingredients” to Crystals. University Chemistry, 2024, 39(6): 366-372. doi: 10.3866/PKU.DXHX202312025