Citation: . GAS SORPTION,DIFFUSION AND PERMEATION OF ORDERED POLYMERIC MEMBRANES[J]. Chinese Journal of Polymer Science, ;2000, 18(4): 301-307. shu

GAS SORPTION,DIFFUSION AND PERMEATION OF ORDERED POLYMERIC MEMBRANES

Received Date: 8 December 1999

He, CO2, O2, N2, CH4, C3H8, and t-C4H_10 gas permeability coefficients and diffusion coefficients of poly(4-methylpentene-1) (PMP) with various degrees of crystallization were plotted against the degree of crystallization. The plotdemonstrated a linear relationship. The gas permeability coefficient and diffusion coefficient of pure amorphous and purecrystalline PMPs were evaluated by a linear extrapolation to zero and 100% crystallinity, respectively. The relationship between the diffusion coefficient of crystalline parts of PMP and the kinetic diameter of penetrant gases was discussed.Syndiotactic polystyrene (SPS) could exist as δ form crystals complexed with organic solvents such as benzene,toluene,xylene,and ethylbenzene.The mesophase of SPS is prepared by annealing the δform of crystalline complexes at a certain temperature for 1 h.The desorption of solvent during annealing almost does not result in changes of both the comformation of backbone chains and the crystal lattice.We could prepare the mesophase containing molecular cavities with the size and shape of the organic solvent molecules.The mesophase could sorb the same solvent after the manner of Langmuir sorption at low vapor pressure range while this would not be the case for solvents of different size and shape.This suggests a molecular recognition of organic solvent,and mesophase SPS might be useful for reparation membrane and adsorptive material.
1. [1]
  Lingyao Zhang , Chunhui Zhang , Yingjia Sun , Qinglin Yang , Ziwei Guo , Xiaoqi Wang , Kang Wang , Lin Zhang , Kesong Liu , Shichao Niu , Cunming Yu , Lei Jiang . Bioinspired underwater gas diffusion enhanced by superaerophilic stripe. Chinese Chemical Letters, 2026, 37(5): 111720-. doi: 10.1016/j.cclet.2025.111720
2. [2]
  Yujie Xie , Kexin Yuan , Beiyang Luo , Haoran Feng , Xian Bao , Jun Ma . Osmotic membranes for municipal wastewater reclamation: Insights into applications, transmembrane diffusion mechanisms and prospects. Chinese Chemical Letters, 2025, 36(7): 110443-. doi: 10.1016/j.cclet.2024.110443
3. [3]
  Juan Tao , Jinlong Yang , Mengyu Zhao , Quangang Zhu , Zhongjian Chen , Jianping Qi . Emerging trends in permeation-enhancing technologies for oral peptide delivery. Chinese Chemical Letters, 2026, 37(3): 111170-. doi: 10.1016/j.cclet.2025.111170
4. [4]
  Jiachen Gao , Hailong Zhang , Xue Zhao , Yafu Wang , Houen Zhu , Xiangyi Kong , Yan Liang , Ting Ou , Rui Ren , Yulan Gu , Yanyong Su , Jiangwei Zhang . Recent advances in anion exchange membranes. Chinese Journal of Structural Chemistry, 2025, 44(5): 100563-100563. doi: 10.1016/j.cjsc.2025.100563
5. [5]
  Xianxin Luo , Jianhao Xu , Qi Luo , Yan Xiao , Feng Wei , Meitong Li , Wenjiao Yuan , Penghui Shao , Shenglian Luo . Efficient copper sorption from saline wastewater using citrate-modified biochar with robust anti-salt interferences. Chinese Chemical Letters, 2026, 37(5): 111914-. doi: 10.1016/j.cclet.2025.111914
6. [6]
  Ji Liu , Dongsheng He , Tianjiao Hao , Yumin Hu , Yan Zhao , Zhen Li , Chang Liu , Daquan Chen , Qiyue Wang , Xiaofei Xin , Yan Shen . Gold mineralized "hybrid nanozyme bomb" for NIR-II triggered tumor effective permeation and cocktail therapy. Chinese Chemical Letters, 2024, 35(9): 109296-. doi: 10.1016/j.cclet.2023.109296
7. [7]
  Sijia Zhou , Tianyi Zhou , Yuhua Hou , Wang Li , Yanfei Shen , Songqin Liu , Kaiqing Wu , Yuanjian Zhang . Recent advances in electrochemiluminescence based on polymeric luminophores. Chinese Chemical Letters, 2025, 36(5): 110284-. doi: 10.1016/j.cclet.2024.110284
8. [8]
  Guangyao Wang , Zhitong Xu , Ye Qi , Yueguang Fang , Guiling Ning , Junwei Ye . Electrospun nanofibrous membranes with antimicrobial activity for air filtration. Chinese Chemical Letters, 2024, 35(10): 109503-. doi: 10.1016/j.cclet.2024.109503
9. [9]
  Ningxiang Wu , Huaping Zhao , Yong Lei . Nanomaterials with highly ordered nanostructures: Definition, influence and future challenge. Chinese Journal of Structural Chemistry, 2024, 43(11): 100392-100392. doi: 10.1016/j.cjsc.2024.100392
10. [10]
  Chen Chen , Jinzhou Zheng , Chaoqin Chu , Qinkun Xiao , Chaozheng He , Xi Fu . An effective method for generating crystal structures based on the variational autoencoder and the diffusion model. Chinese Chemical Letters, 2025, 36(4): 109739-. doi: 10.1016/j.cclet.2024.109739
11. [11]
  Yue Pan , Wenping Si , Yahao Li , Haotian Tan , Ji Liang , Feng Hou . Promoting exciton dissociation by metal ion modification in polymeric carbon nitride for photocatalysis. Chinese Chemical Letters, 2024, 35(12): 109877-. doi: 10.1016/j.cclet.2024.109877
12. [12]
  Hongyi Li , Huiyun Wen , He Zhang , Jin Li , Xiang Cao , Jiaqing Zhang , Yutao Zheng , Saipeng Huang , Weiming Xue , Xiaojun Cai . Polymeric micelle-hydrogel composites design for biomedical applications. Chinese Chemical Letters, 2025, 36(5): 110072-. doi: 10.1016/j.cclet.2024.110072
13. [13]
  Yinglan Yu , Sajid Hussain , Jianping Qi , Lei Luo , Xuemei Zhang . Mechanisms and applications: Cargos transport to basolateral membranes in polarized epithelial cells. Chinese Chemical Letters, 2024, 35(12): 109673-. doi: 10.1016/j.cclet.2024.109673
14. [14]
  Kai Ye , Zhicheng Ye , Chuantao Wang , Zhilai Luo , Cheng Lian , Chunyan Bao . Artificial signal transduction triggered by molecular photoisomerization in lipid membranes. Chinese Chemical Letters, 2025, 36(4): 110033-. doi: 10.1016/j.cclet.2024.110033
15. [15]
  Xingjie Li , Chengjun Yi , Weifei Hu , Huishan Zhang , Jiale Xia , Yuanyuan Li , Jinping Liu . Emerging sulfide-polymer composite solid electrolyte membranes. Chinese Chemical Letters, 2025, 36(6): 110215-. doi: 10.1016/j.cclet.2024.110215
16. [16]
  Xing Zhang , Yumei Wang , Yuntao Zhao , Yue Sun , Yasong Chen , Lei Nie , Zhenglong Li . Hybrid lignin-intercalated MXene membranes for enhanced osmotic energy conversion. Chinese Chemical Letters, 2026, 37(6): 112025-. doi: 10.1016/j.cclet.2025.112025
17. [17]
  Xingwen Cheng , Haoran Ren , Jiangshan Luo . Boosting the self-trapped exciton emission in vacancy-ordered double perovskites via supramolecular assembly. Chinese Journal of Structural Chemistry, 2024, 43(6): 100306-100306. doi: 10.1016/j.cjsc.2024.100306
18. [18]
  Xinhui Fan , Yonghao Fan , Yuli Dang , Puhui Xie , Xin Li , Zhanqi Cao , Song Jiang , Lijie Liu , Xin Zheng , Lixia Xie , Caoyuan Niu , Guoxing Liu , Yong Chen . Logically ordered control of organic room-temperature long-lived supramolecular luminophors. Chinese Chemical Letters, 2025, 36(8): 110648-. doi: 10.1016/j.cclet.2024.110648
19. [19]
  Hongmin Lei , Jie Zhou , Yichen Han , Yaqin Chai , Ruo Yuan . A periodically ordered cruciform DNA nanowire guided-localized HCR for simultaneous and rapid detection and imaging of dual-microRNAs. Chinese Chemical Letters, 2026, 37(6): 111737-. doi: 10.1016/j.cclet.2025.111737
20. [20]
  Zhe Li , Gui-Long Wang , Xin Feng , Jia-Hui Guo , Lu Bai , Jie Chen , Ming-Shui Yao . Fast hydrogenolytic debenzylation enabled by hierarchically ordered porosity and accessibly rich Pd(0) sites. Chinese Journal of Structural Chemistry, 2026, 45(5): 100884-100884. doi: 10.1016/j.cjsc.2026.100884

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1549)
HTML views(53)

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

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return