Citation: Ya Xiao, Ming Qu, Xin-yan Shi. Studies on Shape Memory Effect of Polynorbornene/Poly(lactic acid) Blends[J]. Acta Polymerica Sinica, ;2018, (3): 402-409. doi: 10.11777/j.issn1000-3304.2017.17085 shu

Studies on Shape Memory Effect of Polynorbornene/Poly(lactic acid) Blends

Key Laboratory of Rubber-plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042

Corresponding author: Xin-yan Shi, lindashi88@qust.edu.cn
Received Date: 11 April 2017
Revised Date: 22 May 2017

Temperature responsive shape memory polymers (SMPs) find important applications in automotive, military, biomedical and other fields. In particular, SMPs responsive to human body temperature are highly desired for biomedical applications. Polynorbornene (PNB) has a T_g around human body temperature, exhibiting excellent shape memory properties, whereas poly(lactic acid) (PLA) has attracted great interest in biomedical fields due to its nontoxic and bioresorbable characteristics. Therefore, it is of great significance to explore the possibility of combining advantages of PNB and PLA. In this work, a simple blending strategy was adopted at varying weight ratios, and the shape memory, thermal and mechanical properties of the resultant blends were studied. The results showed that PLA promoted blend yield, and crystallization of PNB favored shape fixation and shape recovery. For PNB/PLA=80/20 blend, the shape fixation rate was 99.88% and the shape recovery rate was 81.04% with the average shape recovery rate of 1.2%/min in the double shape memory. The total shape fixation rate and shape recovery rate were 98.83% and 94.26%, respectively, in the triple shape memory. In PNB/PLA blends, there was a certain interaction between the molecules, which limited, to a certain extent, the movement of the two polymer chains and reduced the crystallization of PLA. When the temperature was over 100 ℃, cold crystallization of PLA appeared in the blends, and this cold crystallization degree increased with decreased PNB. With increased PNB content, PNB/PLA blend became more ductile, the elongation at break increased from a few percent to more than 200%, and the forced elastic deformation occurred, which were favorable for the shape fixation. In the blends, the super-macromolecular chains of PNB were intertwined, resulting in a large number of entanglement points, namely, physical cross-linking points in the materials, which could make the polymer chain movement seriously blocked and their wide range of slippage hampered, so as to provide the driving force for the shape recovery and to improve the shape recovery performance of the blends.
- Polynorbornene,
- Poly(lactic acid),
- Shape memory effects,
- Stress relaxation,
- Crystallization
1. [1]
  Hu J, Zhu Y, Huang H, Lu J. Prog Polym Sci, 2012, 37(12):1720-1763 doi: 10.1016/j.progpolymsci.2012.06.001
2. [2]
  Ratna D, Karger-Kocsis J. J Mater Sci, 2008, 43(1):254-269 doi: 10.1007/s10853-007-2176-7
3. [3]
  Zhu Guangming. Engineering Plastics Application, 2002, 30(8):61-63
4. [4]
  EI Feninat F, Laroche G, Fiset M, Mantovani D. Adv Eng Mater, 2002, 4(3):91-104 doi: 10.1002/1527-2648(200203)4:3<>1.0.CO;2-I
5. [5]
  Lendlein A, Kelch S. Angew Chem Int Ed, 2002, 41(12):2034-2057 doi: 10.1002/1521-3773(20020617)41:12<2034::AID-ANIE2034>3.0.CO;2-M
6. [6]
  Liu G, Ding X, Cao Y, Zheng Z, Peng Y. Macromol Rapid Commun, 2005, 26(8):649-652 doi: 10.1002/(ISSN)1521-3927
7. [7]
  Wischke C, Lendlein A. Pharm Res, 2010, 27(4):527-529 doi: 10.1007/s11095-010-0062-5
8. [8]
  Gunes S I, Jana S C. J Nanosci Nanotechnol, 2008, 8(4):1616-1637 doi: 10.1166/jnn.2008.038
9. [9]
  Song Bo. Liaoning Chemical Industry, 1986, (6):30-34
10. [10]
  Yang D, Huang W, Yu J, Jiang J, Zhang L, Xie M. Polymer, 2010, 51(22):5100-5106 doi: 10.1016/j.polymer.2010.09.009
11. [11]
  Yang D, Gao D, Zeng C, Jiang J, Xie M. React Funct Polym, 2011, 71(11):1096-1101 doi: 10.1016/j.reactfunctpolym.2011.08.009
12. [12]
  Shao Y, Lavigueur C, Zhu X. Macromolecules, 2012, 45(45):1924-1930
13. [13]
  Haselwander Thomas F A, Heitz W, Krügel Stefan A, Wendorff Joachim H. Macromol Chem Phys, 1996, 197(10):3435-3453 doi: 10.1002/macp.1996.021971029
14. [14]
  Shi Tiejun, Dong Zhixian. New Chemical Materials, 2001, 29(5):13-16
15. [15]
  Cheng Rong, Qian Xin. Chemical Industry and Engineering Progress, 2002, 21(11):824-826 doi: 10.3321/j.issn:1000-6613.2002.11.007
16. [16]
  Jin Shuiqing, Xia Hua, Liang Yuerong. New Chemical Materials, 2007, 35(1):61-63
17. [17]
  Nampoothiri K M, Nair N R, John R P. Bioresource Technol, 2010, 101(22):8493-8501 doi: 10.1016/j.biortech.2010.05.092
18. [18]
  Mathew A P, Oksman K, Sain M. J Appl Polym Sci, 2005, 97(5):2014-2025 doi: 10.1002/(ISSN)1097-4628
19. [19]
  Sakurai K, Kashiwagi T, Takahashi T. J Appl Polym Sci, 1993, 47(5):937-940 doi: 10.1002/app.1993.070470521
20. [20]
  Jing X, Mi H Y, Peng X F, Turng L S. Polym Eng Sci, 2015, 55(1):70-80 doi: 10.1002/pen.v55.1
1. [1]
  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
2. [2]
  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
3. [3]
  Xuewei Qian , Xingwen Sun , Houjin Li , Zhanxiang Liu , Yuan Zheng , Lin Wu , Shuanglian Cai , Ying Xiong , Guangao Yu , Qingwen Liu , Jie Han , Xin Du , Chengshan Yuan , Qihan Zhang , Shuyong Zhang , Jianrong Zhang . Basic Operations and Specification Suggestions for Organic Chemical Recrystallization Experiments. University Chemistry, 2025, 40(5): 66-75. doi: 10.12461/PKU.DXHX202503126
4. [4]
  Chengshan Yuan , Xiaolong Li , Xiuping Yang , Xiangfeng Shao , Zitong Liu , Xiaolei Wang , Yongwen Shen . Standardized Operational Guidelines for Mixed-Solvent Recrystallization in Organic Chemistry Experiment. University Chemistry, 2025, 40(5): 122-127. doi: 10.12461/PKU.DXHX202504073
5. [5]
  Ruiying Zhao , Shuheng Luo , Jinke Li , Junjie Zhang , Min Zhu , Yang Li , Yanhong Bai , Yinhuan Li , Lijuan Wang . Ultrasonic-Assisted Synthesis of Rosacetal: A Comprehensive Research-Oriented Organic Chemistry Experiment. University Chemistry, 2025, 40(11): 300-309. doi: 10.12461/PKU.DXHX202412075
6. [6]
  Fengmei Wang , Xin Zhang , Hong Yan , Xiangyu Xu , Guirong Wang . Inverted 'Π' Graphic Memory Method for Thermodynamic Basic Equations and the Application in Teaching Practice. University Chemistry, 2025, 40(11): 369-375. doi: 10.12461/PKU.DXHX202412087
7. [7]
  Jinfeng Chu , Lan Jin , Yu-Fei Song . Exploration and Practice of Flipped Classroom in Inorganic Chemistry Experiment: a Case Study on the Preparation of Inorganic Crystalline Compounds. University Chemistry, 2024, 39(2): 248-254. doi: 10.3866/PKU.DXHX202308016
8. [8]
  Shi-Yu Lu , Wenzhao Dou , Jun Zhang , Ling Wang , Chunjie Wu , Huan Yi , Rong Wang , Meng Jin . Amorphous-Crystalline Interfaces Coupling of CrS/CoS₂ Few-Layer Heterojunction with Optimized Crystallinity Boosted for Water-Splitting and Methanol-Assisted Energy-Saving Hydrogen Production. Acta Physico-Chimica Sinica, 2024, 40(8): 2308024-0. doi: 10.3866/PKU.WHXB202308024
9. [9]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . Simultaneously Improving Inter-Plane Crystallization and Incorporating K Atoms in g-C₃N₄ Photocatalyst for Highly-Efficient H₂O₂ Photosynthesis. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-0. doi: 10.3866/PKU.WHXB202406005
10. [10]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . Remarkable Photocatalytic H₂O₂ Production Efficiency over Ultrathin g-C₃N₄ Nanosheet with Large Surface Area and Enhanced Crystallinity by Two-Step Calcination. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-0. doi: 10.3866/PKU.WHXB202406019
11. [11]
  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
12. [12]
  Min LIU , Huapeng RUAN , Zhongtao FENG , Xue DONG , Haiyan CUI , Xinping WANG . Neutral boron-containing radical dimers. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 123-130. doi: 10.11862/CJIC.20240362
13. [13]
  Peiyu Zhang , Aixin Song , Jingcheng Hao , Jiwei Cui . 高频超声法制备聚多巴胺薄膜综合实验. University Chemistry, 2025, 40(6): 210-214. doi: 10.12461/PKU.DXHX202407081
14. [14]
  Yunting Shang , Yue Dai , Jianxin Zhang , Nan Zhu , Yan Su . Something about RGO (Reduced Graphene Oxide). University Chemistry, 2024, 39(9): 273-278. doi: 10.3866/PKU.DXHX202306050
15. [15]
  Anbang Du , Yuanfan Wang , Zhihong Wei , Dongxu Zhang , Li Li , Weiqing Yang , Qianlu Sun , Lili Zhao , Weigao Xu , Yuxi Tian . Photothermal Microscopy of Graphene Flakes with Different Thicknesses. Acta Physico-Chimica Sinica, 2024, 40(5): 2304027-0. doi: 10.3866/PKU.WHXB202304027
16. [16]
  Zhihuan XU , Qing KANG , Yuzhen LONG , Qian YUAN , Cidong LIU , Xin LI , Genghuai TANG , Yuqing LIAO . Effect of graphene oxide concentration on the electrochemical properties of reduced graphene oxide/ZnS. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1329-1336. doi: 10.11862/CJIC.20230447
17. [17]
  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
18. [18]
  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
19. [19]
  Huirong BAO , Jun YANG , Xiaomiao FENG . Preparation and electrochemical properties of NiCoP/polypyrrole/carbon cloth by electrodeposition. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1083-1093. doi: 10.11862/CJIC.20250008
20. [20]
  Shengli Chen , Xinxin Zhao , Mingxue Xing , Xintai Li , Xiaojie Zhang , Xiuli Hu , Jimin Zhang . “一触即发”：聚羧酸减水剂和水泥的魔力碰撞. University Chemistry, 2025, 40(8): 315-322. doi: 10.12461/PKU.DXHX202410036

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(206)
HTML views(5)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142