Citation:
Yan-hui Xiang, Fu Liu, Li-xin Xue, Jian-hui Shen, Hai-bo Lin. Morphology Evolution of Poly(vinylidene fluoride) Membranes during Supercritical CO2 Assisted Phase Inversion[J]. Chinese Journal of Polymer Science,
;2014, 32(12): 1628-1638.
doi:
10.1007/s10118-014-1554-2
-
A supercritical carbon dioxide (ScCO2) assisted phase inversion was developed to produce microporous poly(vinylidene fluoride) (PVDF) membranes whose morphology characteristics arise from both liquid-liquid demixing and solid-liquid demixing (crystallization). This result was confirmed by Fourier transform infrared spectroscopy (FTIR), from which both and crystals were found. As revealed by contact angle experiment, the PVDF membranes prepared via ScCO2 assisted phase inversion were more hydrophobic compared with the control membrane produced via conventional immersion-precipitation technique. In particular, the sample with 15 wt% PVDF prepared at 45 ℃ and 13 MPa exhibited a contact angle of 142, which was mainly caused by the multilevel micro- and nano- structure. The effects of polyethylene glycol (PEG), polyvinyl pyrrolidone (PVP) and lithium chloride (LiCl) on the structures and crystal form were investigated. PVP promoted the formation of phase crystal form, while PEG boosts the evolution of phase. LiCl restrained the crystallization degree of PVDF membrane under ScCO2.
-
-
-
[1]
-
[2]
-
[3]
-
[4]
-
[5]
-
[6]
-
[7]
-
[8]
-
[9]
-
[10]
-
[11]
-
[12]
-
[13]
-
[14]
-
[15]
-
[16]
-
[17]
-
[18]
-
[19]
-
[20]
-
[21]
-
[22]
-
[23]
-
[24]
-
[25]
-
[26]
-
[27]
-
[28]
-
[29]
-
[30]
-
[31]
-
[32]
-
[33]
-
[1]
-
-
-
[1]
Zixu Xie , Pengfei Zhang , Ziyao Zhang , Chen Chen , Xing Wang . The choice of antimicrobial polymers: Hydrophilic or hydrophobic?. Chinese Chemical Letters, 2024, 35(9): 109768-. doi: 10.1016/j.cclet.2024.109768
-
[2]
Zhongjie Li , Xiangyue Kong , Yuhao Liu , Huayu Qiu , Lingling Zhan , Shouchun Yin . Progress of additives for morphology control in organic photovoltaics. Chinese Chemical Letters, 2024, 35(6): 109378-. doi: 10.1016/j.cclet.2023.109378
-
[3]
Daheng Wen , Weiwei Fang , Yongmei Liu , Tao Tu . Valorization of carbon dioxide with alcohols. Chinese Chemical Letters, 2024, 35(7): 109394-. doi: 10.1016/j.cclet.2023.109394
-
[4]
Menglu Guo , Ying-Qi Song , Junfei Cheng , Guoqiang Dong , Xun Sun , Chunquan Sheng . Hydrophobic tagging-induced degradation of NAMPT in leukemia cells. Chinese Chemical Letters, 2024, 35(9): 109392-. doi: 10.1016/j.cclet.2023.109392
-
[5]
Si Ha , Jiacheng Zhu , Hua Xiang , Guoshun Luo . Hydrophobic tag tethering degrader as a promising paradigm of protein degradation: Past, present and future perspectives. Chinese Chemical Letters, 2024, 35(8): 109192-. doi: 10.1016/j.cclet.2023.109192
-
[6]
Kai Han , Guohui Dong , Ishaaq Saeed , Tingting Dong , Chenyang Xiao . Morphology and photocatalytic tetracycline degradation of g-C3N4 optimized by the coal gangue. Chinese Journal of Structural Chemistry, 2024, 43(2): 100208-100208. doi: 10.1016/j.cjsc.2023.100208
-
[7]
Xin Lu , Haoran Sun , Xiaomeng Li , Chunrui Li , Jinfeng Wang , Dandan Zhou . C14-HSL limits the mycelial morphology of pathogen Trichosporon cells but enhances their aggregation: Mechanisms and implications. Chinese Chemical Letters, 2024, 35(6): 108936-. doi: 10.1016/j.cclet.2023.108936
-
[8]
Yuan Dong , Mutian Ma , Zhenyang Jiao , Sheng Han , Likun Xiong , Zhao Deng , Yang Peng . Effect of electrolyte cation-mediated mechanism on electrocatalytic carbon dioxide reduction. Chinese Chemical Letters, 2024, 35(7): 109049-. doi: 10.1016/j.cclet.2023.109049
-
[9]
Wei-Jia Wang , Kaihong Chen . Molecular-based porous polymers with precise sites for photoreduction of carbon dioxide. Chinese Chemical Letters, 2025, 36(1): 109998-. doi: 10.1016/j.cclet.2024.109998
-
[10]
Yuchen Zhang , Lifeng Ding , Zhenghe Xie , Xin Zhang , Xiaofeng Sui , Jian-Rong Li . Porous sorbents for direct capture of carbon dioxide from ambient air. Chinese Chemical Letters, 2025, 36(3): 109676-. doi: 10.1016/j.cclet.2024.109676
-
[11]
Xingqun Pu , Rongrong Liu , Yuting Xie , Chenjing Yang , Jingyi Chen , Baoling Guo , Chun-Xia Zhao , Peng Zhao , Jian Ruan , Fangfu Ye , David A Weitz , Dong Chen . One-step preparation of biocompatible amphiphilic dimer nanoparticles with tunable particle morphology and surface property for interface stabilization and drug delivery. Chinese Chemical Letters, 2025, 36(3): 109820-. doi: 10.1016/j.cclet.2024.109820
-
[12]
Chen Lian , Si-Han Zhao , Hai-Lou Li , Xinhua Cao . A giant Ce-containing poly(tungstobismuthate): Synthesis, structure and catalytic performance for the decontamination of a sulfur mustard simulant. Chinese Chemical Letters, 2024, 35(10): 109343-. doi: 10.1016/j.cclet.2023.109343
-
[13]
Shan Jiang , Lingchen Meng , Wenyue Ma , Qingkai Qi , Wei Zhang , Bin Xu , Leijing Liu , Wenjing Tian . Corrigendum to 'Morphology controllable conjugated network polymers based on AIE-active building block for TNP detection' [Chin. Chem. Lett. 32 (2021) 1037-1040]. Chinese Chemical Letters, 2024, 35(12): 108998-. doi: 10.1016/j.cclet.2023.108998
-
[14]
Jian Yang , Guang Yang , Zhijie Chen . Capturing carbon dioxide from air by using amine-functionalized metal-organic frameworks. Chinese Journal of Structural Chemistry, 2024, 43(5): 100267-100267. doi: 10.1016/j.cjsc.2024.100267
-
[15]
Yue Zhang , Xiaoya Fan , Xun He , Tingyu Yan , Yongchao Yao , Dongdong Zheng , Jingxiang Zhao , Qinghai Cai , Qian Liu , Luming Li , Wei Chu , Shengjun Sun , Xuping Sun . Ambient electrosynthesis of urea from carbon dioxide and nitrate over Mo2C nanosheet. Chinese Chemical Letters, 2024, 35(8): 109806-. doi: 10.1016/j.cclet.2024.109806
-
[16]
Xiaxia Xing , Xiaoyu Chen , Zhenxu Li , Xinhua Zhao , Yingying Tian , Xiaoyan Lang , Dachi Yang . Polyethylene imine functionalized porous carbon framework for selective nitrogen dioxide sensing with smartphone communication. Chinese Chemical Letters, 2024, 35(9): 109230-. doi: 10.1016/j.cclet.2023.109230
-
[17]
Weidan Meng , Yanbo Zhou , Yi Zhou . Green innovation unleashed: Harnessing tungsten-based nanomaterials for catalyzing solar-driven carbon dioxide conversion. Chinese Chemical Letters, 2025, 36(2): 109961-. doi: 10.1016/j.cclet.2024.109961
-
[18]
He Yao , Wenhao Ji , Yi Feng , Chunbo Qian , Chengguang Yue , Yue Wang , Shouying Huang , Mei-Yan Wang , Xinbin Ma . Copper-catalyzed and biphosphine ligand controlled 3,4-boracarboxylation of 1,3-dienes with carbon dioxide. Chinese Chemical Letters, 2025, 36(4): 110076-. doi: 10.1016/j.cclet.2024.110076
-
[19]
Xingxing Jiang , Yuxin Zhao , Yan Kong , Jianju Sun , Shangzhao Feng , Xin Lu , Qi Hu , Hengpan Yang , Chuanxin He . Support effect and confinement effect of porous carbon loaded tin dioxide nanoparticles in high-performance CO2 electroreduction towards formate. Chinese Chemical Letters, 2025, 36(1): 109555-. doi: 10.1016/j.cclet.2024.109555
-
[20]
Peiwen Liu , Fang Zhao , Jing Zhang , Yunpeng Bai , Jinxing Ye , Bo Bao , Xinggui Zhou , Li Zhang , Changlu Zhou , Xinhai Yu , Peng Zuo , Jianye Xia , Lian Cen , Yangyang Yang , Guoyue Shi , Lin Xu , Weiping Zhu , Yufang Xu , Xuhong Qian . Micro/nano flow chemistry by Beyond Limits Manufacturing. Chinese Chemical Letters, 2024, 35(5): 109020-. doi: 10.1016/j.cclet.2023.109020
-
[1]
Metrics
- PDF Downloads(0)
- Abstract views(723)
- HTML views(32)