Citation: Zhi-liang Wang, Jia-li Xu, Lian-jia Wu, Xin Chen, Shu-guang Yang, Hui-chao Liu, Xian-ju Zhou. Dissolution, Hydrolysis and Crystallization Behavior of Polyamide 6 in Superheated Water[J]. Chinese Journal of Polymer Science, ;2015, 33(9): 1334-1343. doi: 10.1007/s10118-015-1682-3 shu

Dissolution, Hydrolysis and Crystallization Behavior of Polyamide 6 in Superheated Water

Received Date: 14 February 2015
Revised Date: 25 April 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 51373032), Innovation Program of Shanghai Municipal Education Commission, Fundamental Research Funds for the Central University and DHU Distinguished Young Professor Program. Z.W. thanks the support from Chinese Universities Scientific Fund (No. CUSF-DH-D-2014025).

The dissolution, crystallization and hydrolysis behaviors of polyamide 6 (PA 6) in superheated water (140 ℃ TH 200 ℃) are investigated. The hydrothermal processing of PA 6 can be divided into four regions: (I) TH 140 ℃, (II) 140 ℃ TH 155 ℃, (III) 155 ℃ TH 160 ℃ and (IV) TH 160 ℃. Below 140 ℃, the hydrothermal processing does not have obvious impact on PA 6. Between 140 ℃ and 155 ℃, an annealing effect is observed that the hydrothermally treated resin shows increased melting temperature and lamellar thickness compared with the original PA 6. Between 155 ℃ and 160 ℃, the hydrothermal processing induces both annealing and surface swelling. Above 160 ℃, PA 6 dissolves fully in the superheated water. As PA 6 dissolves in the superheated water, hydrolysis takes place and becomes more prominent at higher temperatures and longer processing time. The hydrolysis induced molecular weight decrease fits an exponential decay.
- Nylon 6,
- Superheated water,
- Annealing,
- Crystallization,
- Hydrolysis
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
34. [34]
35. [35]
36. [36]
37. [37]
38. [38]
39. [39]
1. [1]
  Xian-Fa Jiang , Chongyun Shao , Zhongwen Ouyang , Zhao-Bo Hu , Zhenxing Wang , You Song . Generating electron spin qubit in metal-organic frameworks via spontaneous hydrolysis. Chinese Chemical Letters, 2024, 35(7): 109011-. doi: 10.1016/j.cclet.2023.109011
2. [2]
  Jun Lu , Jinrui Yan , Yaohao Guo , Junjie Qiu , Shuangliang Zhao , Bo Bao . Controlling solid form and crystal habit of triphenylmethanol by antisolvent crystallization in a microfluidic device. Chinese Chemical Letters, 2024, 35(4): 108876-. doi: 10.1016/j.cclet.2023.108876
3. [3]
  Bin Dong , Ning Yu , Qiu-Yue Wang , Jing-Ke Ren , Xin-Yu Zhang , Zhi-Jie Zhang , Ruo-Yao Fan , Da-Peng Liu , Yong-Ming Chai . Double active sites promoting hydrogen evolution activity and stability of CoRuOH/Co₂P by rapid hydrolysis. Chinese Chemical Letters, 2024, 35(7): 109221-. doi: 10.1016/j.cclet.2023.109221
4. [4]
  Dian-Xue Ma , Yu-Wu Zhong . Achieving highly-efficient room-temperature phosphorescence with a nylon matrix. Chinese Journal of Structural Chemistry, 2024, 43(9): 100391-100391. doi: 10.1016/j.cjsc.2024.100391
5. [5]
  Fang-Yuan Chen , Wen-Chao Geng , Kang Cai , Dong-Sheng Guo . Molecular recognition of cyclophanes in water. Chinese Chemical Letters, 2024, 35(5): 109161-. doi: 10.1016/j.cclet.2023.109161
6. [6]
  Kun Tang , Yu-Wu Zhong . Water reduction by an organic single-chromophore photocatalyst. Chinese Journal of Structural Chemistry, 2024, 43(8): 100376-100376. doi: 10.1016/j.cjsc.2024.100376
7. [7]
  . . University Chemistry, 2024, 39(6): 0-0.
8. [8]
  Yi Zhang , Biao Wang , Chao Hu , Muhammad Humayun , Yaping Huang , Yulin Cao , Mosaad Negem , Yigang Ding , Chundong Wang . Fe–Ni–F electrocatalyst for enhancing reaction kinetics of water oxidation. Chinese Journal of Structural Chemistry, 2024, 43(2): 100243-100243. doi: 10.1016/j.cjsc.2024.100243
9. [9]
  Yang Yang , Jing-Li Luo , Xian-Zhu Fu . Water-oxidation intermediates enabling electrochemical propylene epoxidation. Chinese Journal of Structural Chemistry, 2024, 43(5): 100269-100269. doi: 10.1016/j.cjsc.2024.100269
10. [10]
  Jinjie Lu , Qikai Liu , Yuting Zhang , Yi Zhou , Yanbo Zhou . Antibacterial performance of cationic quaternary phosphonium-modified chitosan polymer in water. Chinese Chemical Letters, 2024, 35(9): 109406-. doi: 10.1016/j.cclet.2023.109406
11. [11]
  Wenhao Chen , Jian Du , Hanbin Zhang , Hancheng Wang , Kaicheng Xu , Zhujun Gao , Jiaming Tong , Jin Wang , Junjun Xue , Ting Zhi , Longlu Wang . Surface treatment of GaN nanowires for enhanced photoelectrochemical water-splitting. Chinese Chemical Letters, 2024, 35(9): 109168-. doi: 10.1016/j.cclet.2023.109168
12. [12]
  Shuyuan Pan , Zehui Yang , Fang Luo . Ni-based electrocatalysts for urea assisted water splitting. Chinese Journal of Structural Chemistry, 2024, 43(8): 100373-100373. doi: 10.1016/j.cjsc.2024.100373
13. [13]
  Rui Liu , Jinbo Pang , Weijia Zhou . Monolayer water shepherding supertight MXene/graphene composite films. Chinese Journal of Structural Chemistry, 2024, 43(10): 100329-100329. doi: 10.1016/j.cjsc.2024.100329
14. [14]
  Pan Liu , Yanming Sun , Alberto J. Fernández-Carrión , Bowen Zhang , Hui Fu , Lunhua He , Xing Ming , Congling Yin , Xiaojun Kuang . Bismuth-based halide double perovskite Cs₂KBiCl₆: Disorder and luminescence. Chinese Chemical Letters, 2024, 35(5): 108641-. doi: 10.1016/j.cclet.2023.108641
15. [15]
  Zhen Liu , Zhi-Yuan Ren , Chen Yang , Xiangyi Shao , Li Chen , Xin Li . Asymmetric alkenylation reaction of benzoxazinones with diarylethylenes catalyzed by B(C₆F₅)₃/chiral phosphoric acid. Chinese Chemical Letters, 2024, 35(5): 108939-. doi: 10.1016/j.cclet.2023.108939
16. [16]
  Ruizhi Yang , Xia Li , Weiping Guo , Zixuan Chen , Hongwei Ming , Zhong-Zhen Luo , Zhigang Zou . New thermoelectric semiconductors Pb5Sb12+xBi6-xSe32 with ultralow thermal conductivity. Chinese Journal of Structural Chemistry, 2024, 43(3): 100268-100268. doi: 10.1016/j.cjsc.2024.100268
17. [17]
  Zhengzheng LIU , Pengyun ZHANG , Chengri WANG , Shengli HUANG , Guoyu YANG . Synthesis, structure, and electrochemical properties of a sandwich-type {Co₆}-cluster-added germanotungstate. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1173-1179. doi: 10.11862/CJIC.20240039
18. [18]
  Qiang ZHAO , Zhinan GUO , Shuying LI , Junli WANG , Zuopeng LI , Zhifang JIA , Kewei WANG , Yong GUO . Cu₂O/Bi₂MoO₆ Z-type heterojunction: Construction and photocatalytic degradation properties. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 885-894. doi: 10.11862/CJIC.20230435
19. [19]
  Lu LIU , Huijie WANG , Haitong WANG , Ying LI . Crystal structure of a two-dimensional Cd(Ⅱ) complex and its fluorescence recognition of p-nitrophenol, tetracycline, 2, 6-dichloro-4-nitroaniline. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1180-1188. doi: 10.11862/CJIC.20230489
20. [20]
  Meijuan Chen , Liyun Zhao , Xianjin Shi , Wei Wang , Yu Huang , Lijuan Fu , Lijun Ma . Synthesis of carbon quantum dots decorating Bi₂MoO₆ microspherical heterostructure and its efficient photocatalytic degradation of antibiotic norfloxacin. Chinese Chemical Letters, 2024, 35(8): 109336-. doi: 10.1016/j.cclet.2023.109336

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(596)
HTML views(24)

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