Gelation of Poly(L-lactic acid) Induced by Complex Crystallization with Solvents

被引：13
|
作者：
Matsuda, Yasuhiro [1 ]
Fukatsu, Akinobu [1 ]
Tasaka, Shigeru [1 ]
机构：
[1] Shizuoka Univ, Dept Mat Sci & Chem Engn, Naka Ku, Hamamatsu, Shizuoka 4328561, Japan
来源：
CHEMISTRY LETTERS | 2012年 / 41卷 / 11期
关键词：
CRYSTAL-STRUCTURE; ALPHA-FORM; CONFORMATION; MORPHOLOGY; FIBERS; SPUN;
D O I：
10.1246/cl.2012.1420
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Gels of poly(L-lactic acid) (PLLA) in several solvents, including N,N-dimethylformamide (DMF) were formed by cooling solutions of PLLA. Polarizing optical micrographs showed the formation of spherulites of PLLA in the gels below 70 degrees C. The storage modulus of the gel decreased abruptly below 70 degrees C, which suggest that the crystalline structure of PLLA prevented the flow of DMF and induced the gelation. The X-ray diffraction (XRD) patterns of the gels were similar to those of the epsilon-crystals of PLLA which were induced by the formation of complex crystallization with DMF. The mechanism of the formation of the gel is discussed based on the experimental data.
引用
收藏
页码：1420 / 1421
页数：2
相关论文
共 50 条
  • [41] Melting behavior of poly(L-lactic acid): Effects of crystallization temperature and
    Yasuniwa, Munehisa
    Lura, Koji
    Dan, Yusuke
    POLYMER, 2007, 48 (18) : 5398 - 5407
  • [42] CRYSTALLIZATION BEHAVIOR OF THE SYSTEM POLY(L-LACTIC ACID) AND PENTAERYTHRITYL TETRABROMIDE
    VASANTHAKUMARI, R
    JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY, 1983, A20 (04): : 463 - 468
  • [43] Effect of Polylactide Stereocomplex on the Crystallization Behavior of Poly(L-lactic acid)
    Rahman, Nelly
    Kawai, Takahiko
    Matsuba, Go
    Nishida, Koji
    Kanaya, Toshiji
    Watanabe, Hiroshi
    Okamoto, Hirotaka
    Kato, Makoto
    Usuki, Arimitsu
    Matsuda, Masatoshi
    Nakajima, Katsuhiko
    Honma, Nobutaka
    MACROMOLECULES, 2009, 42 (13) : 4739 - 4745
  • [44] The effect of crystallization on the solid state polycondensation of poly(L-lactic acid)
    Xu, Hong
    Luo, Minghua
    Yu, Muhuo
    Teng, Cuiqing
    Xie, Si
    JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 2006, 45 (04): : 681 - 687
  • [45] Crystallization of poly(L-lactic acid) probed with dielectric relaxation spectroscopy
    Bras, Ana Rita
    Viciosa, Maria Teresa
    Wang, Yaming
    Dionisio, Madalena
    Mano, Joao F.
    MACROMOLECULES, 2006, 39 (19) : 6513 - 6520
  • [46] Fabrication and crystallization behavior of hollow poly(l-lactic acid) nanofibers
    Samanta, Pratick
    Srivastava, Rajiv
    Nandan, Bhanu
    POLYMER CRYSTALLIZATION, 2020, 3 (05)
  • [47] Relationship between the crystallization behavior of poly(ethylene glycol) and stereocomplex crystallization of poly(L-lactic acid)/poly(D-lactic acid)
    Luo, Chunyan
    Yang, Minrui
    Xiao, Wei
    Yang, Jingjing
    Wang, Yan
    Chen, Weixing
    Han, Xia
    POLYMER INTERNATIONAL, 2018, 67 (03) : 313 - 321
  • [48] Effect of melting survived nanocrystal on flow-induced crystallization of poly(L-lactic acid)
    Zhou, Yufeng
    Lu, Yaguang
    Yu, Haojie
    Wang, Binghua
    Shen, Changyu
    Chen, Jingbo
    Zhang, Bin
    POLYMER, 2024, 295
  • [49] Effect of crystallization temperature on crystal modifications and crystallization morphology of poly(L-lactic acid)
    Xu, Yang
    Sun, Zhi-Dan
    Chen, Xiao-Lang
    Guo, Gang
    Zhang, Zhi-Bin
    Hu, Shu-Chun
    Gongneng Cailiao/Journal of Functional Materials, 2012, 43 (16): : 2138 - 2141
  • [50] Conformational differences of poly(L-lactic acid) and poly(D,L-lactic acid) in dilute solutions
    Pavlov, G. M.
    Dommes, O. A.
    Aver'yanov, I. V.
    Kolbina, G. F.
    Okatova, O. V.
    Korzhikov, V. A.
    Dobrodumov, A. V.
    Tennikova, T. B.
    DOKLADY CHEMISTRY, 2015, 465 : 261 - 264
12345