Citation: Yan-hu Xue, Yan-hui Wang, Yan-di Fan, He-ran Yang, Tao Tang, Shu-qin Bo, Xiang-ling Ji. Microstructure Characterization of Short-chain Branching Polyethylene with Differential Scanning Calorimetry and Successive Self-nucleation/Annealing Thermal Fractionation[J]. Chinese Journal of Polymer Science, ;2014, 32(6): 751-757. doi: 10.1007/s10118-014-1444-7 shu

Microstructure Characterization of Short-chain Branching Polyethylene with Differential Scanning Calorimetry and Successive Self-nucleation/Annealing Thermal Fractionation

Yan-hu Xue ^1,2,3 ,
Yan-hui Wang ⁴ ,
Yan-di Fan ⁴ ,
He-ran Yang ⁴ ,
Tao Tang ⁴ ,
Shu-qin Bo ⁴ ,
Xiang-ling Ji ^4,,

1.
1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
2.
2. University of Chinese Academy of Sciences, Changchun 130022, China
3.
4.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Corresponding author: Xiang-ling Ji,
Received Date: 9 September 2013
Revised Date: 29 October 2013

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 20734006 and 50921062).

A series of the copolymers of ethylene with 1-hexene (M1M9) synthesized by metallocene catalyst Et[Ind]2ZrCl2/MAO was studied by differential scanning calorimetry and successive self-nucleation and annealing (SSA) thermal fractionation. The distribution of methylene sequence length (MSL) in the different copolymers was determined using the SSA method. The comonomer contents of samples M4 and M5 are 2.04 mol% and 2.78 mol%, respectively. Both M4 and M5 have low comonomer content and their MSL distribution profiles exhibit a monotonous increase trend with their MSL. The longest MSL of M5 is 167, and its corresponding molar percent is 43.95%, which is higher than that of M4. Moreover, the melting temperature (Tm) of M5 is also higher than that of M4. The comonomer contents of samples M7, M8, and M9 are 8.73 mol%, 14.18 mol% and 15.05 mol%, respectively. M7, M8, and M9 have high comonomer contents, and their MSL distribution profiles display unimodality. M7 has a lower peak value of 33 and a narrow MSL distribution, resulting in a Tm lower than that of M8 and M9. The MSL and its distribution are also key points that influence the melting behavior of copolymers. Sometimes, MSL and its distribution of copolymers have a greater impact on it than the total comonomer contents, which is different from traditional views.
- Polyethylene,
- Methylene sequence length(MSL),
- Microstructure,
- successive self-nucleation and annealing (SSA),
- SCB
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]
1. [1]
  Min Chen , Boyu Peng , Xuyun Guo , Ye Zhu , Hanying Li . Polyethylene interfacial dielectric layer for organic semiconductor single crystal based field-effect transistors. Chinese Chemical Letters, 2024, 35(4): 109051-. doi: 10.1016/j.cclet.2023.109051
2. [2]
  Mingxin Song , Lijing Xie , Fangyuan Su , Zonglin Yi , Quangui Guo , Cheng-Meng Chen . New insights into the effect of hard carbons microstructure on the diffusion of sodium ions into closed pores. Chinese Chemical Letters, 2024, 35(6): 109266-. doi: 10.1016/j.cclet.2023.109266
3. [3]
  Qiang Cao , Xue-Feng Cheng , Jia Wang , Chang Zhou , Liu-Jun Yang , Guan Wang , Dong-Yun Chen , Jing-Hui He , Jian-Mei Lu . Graphene from microwave-initiated upcycling of waste polyethylene for electrocatalytic reduction of chloramphenicol. Chinese Chemical Letters, 2024, 35(4): 108759-. doi: 10.1016/j.cclet.2023.108759
4. [4]
  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
5. [5]
  Zhihong LUO , Yan SHI , Jinyu AN , Deyi ZHENG , Long LI , Quansheng OUYANG , Bin SHI , Jiaojing SHAO . Two-dimensional silica-modified polyethylene oxide solid polymer electrolyte to enhance the performance of lithium-ion batteries. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 1005-1014. doi: 10.11862/CJIC.20230444
6. [6]
  Kuangdi Luo , Yang Qin , Xuehao Zhang , Hanxu Ji , Heao Zhang , Jiangtian Li , Xianjin Xiao , Xinyu Wang . Regulable toehold lock for the effective control of strand displacement reaction sequence and circuit leakage. Chinese Chemical Letters, 2024, 35(7): 109104-. doi: 10.1016/j.cclet.2023.109104
7. [7]
  Yikun Wang , Qiaomei Chen , Shijie Liang , Dongdong Xia , Chaowei Zhao , Christopher R. McNeill , Weiwei Li . Near-infrared double-cable conjugated polymers based on alkyl linkers with tunable length for single-component organic solar cells. Chinese Chemical Letters, 2024, 35(4): 109164-. doi: 10.1016/j.cclet.2023.109164
8. [8]
  Zhenjie Yang , Chenyang Hu , Xuan Pang , Xuesi Chen . Sequence design in terpolymerization of ε-caprolactone, CO₂ and cyclohexane oxide: Random ester-carbonate distributions lead to large-span tunability. Chinese Chemical Letters, 2024, 35(5): 109340-. doi: 10.1016/j.cclet.2023.109340
9. [9]
  Changzhu Huang , Wei Dai , Shimao Deng , Yixin Tian , Xiaolin Liu , Jia Lin , Hong Chen . A self-cleaning window for high-efficiency photodegradation of indoor formaldehyde. Chinese Chemical Letters, 2024, 35(9): 109429-. doi: 10.1016/j.cclet.2023.109429
10. [10]
  Zhenzhu Wang , Chenglong Liu , Yunpeng Ge , Wencan Li , Chenyang Zhang , Bing Yang , Shizhong Mao , Zeyuan Dong . Differentiated self-assembly through orthogonal noncovalent interactions towards the synthesis of two-dimensional woven supramolecular polymers. Chinese Chemical Letters, 2024, 35(5): 109127-. doi: 10.1016/j.cclet.2023.109127
11. [11]
  Yihao Zhang , Yang Jiao , Xianchao Jia , Qiaojia Guo , Chunying Duan . Highly effective self-assembled porphyrin MOCs nanomaterials for enhanced photodynamic therapy in tumor. Chinese Chemical Letters, 2024, 35(5): 108748-. doi: 10.1016/j.cclet.2023.108748
12. [12]
  Supphachok Chanmungkalakul , Syed Ali Abbas Abedi , Federico J. Hernández , Jianwei Xu , Xiaogang Liu . The dark side of cyclooctatetraene (COT): Photophysics in the singlet states of “self-healing” dyes. Chinese Chemical Letters, 2024, 35(8): 109227-. doi: 10.1016/j.cclet.2023.109227
13. [13]
  Chunqing Ou , Meijia Xiao , Xinyue Zheng , Xianzhou Huang , Suleixin Yang , Yingying Leng , Xiaowei Liu , Xiuqi Liang , Linjiang Song , Yanjie You , Shaohua Yao , Changyang Gong . Programmable double-unlock nanocomplex self-supplies phenylalanine ammonia-lyase for precise phenylalanine deprivation of tumors. Chinese Chemical Letters, 2024, 35(8): 109275-. doi: 10.1016/j.cclet.2023.109275
14. [14]
  Sifan Du , Yuan Wang , Fulin Wang , Tianyu Wang , Li Zhang , Minghua Liu . Evolution of hollow nanosphere to microtube in the self-assembly of chiral dansyl derivatives and inversed circularly polarized luminescence. Chinese Chemical Letters, 2024, 35(7): 109256-. doi: 10.1016/j.cclet.2023.109256
15. [15]
  Caixia Li , Yi Qiu , Yufeng Zhao , Wuliang Feng . Self assembled electron blocking and lithiophilic interface towards dendrite-free solid-state lithium battery. Chinese Chemical Letters, 2024, 35(4): 108846-. doi: 10.1016/j.cclet.2023.108846
16. [16]
  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
17. [17]
  Xiaofei NIU , Ke WANG , Fengyan SONG , Shuyan YU . Self-assembly of [Pd₆(L)₄]⁸⁺-type macrocyclic complexes for fluorescent sensing of HSO₃^-. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1233-1242. doi: 10.11862/CJIC.20240057
18. [18]
  Yan Wang , Huixin Chen , Fuda Yu , Shanyue Wei , Jinhui Song , Qianfeng He , Yiming Xie , Miaoliang Huang , Canzhong Lu . Oxygen self-doping pyrolyzed polyacrylic acid as sulfur host with physical/chemical adsorption dual function for lithium-sulfur batteries. Chinese Chemical Letters, 2024, 35(7): 109001-. doi: 10.1016/j.cclet.2023.109001
19. [19]
  Zengchao Guo , Weiwei Liu , Tengfei Liu , Jinpeng Wang , Hui Jiang , Xiaohui Liu , Yossi Weizmann , Xuemei Wang . Engineered exosome hybrid copper nanoscale antibiotics facilitate simultaneous self-assembly imaging and elimination of intracellular multidrug-resistant superbugs. Chinese Chemical Letters, 2024, 35(7): 109060-. doi: 10.1016/j.cclet.2023.109060
20. [20]
  Luyu Zhang , Zirong Dong , Shuai Yu , Guangyue Li , Weiwen Kong , Wenjuan Liu , Haisheng He , Yi Lu , Wei Wu , Jianping Qi . Ionic liquid-based in situ dynamically self-assembled cationic lipid nanocomplexes (CLNs) for enhanced intranasal siRNA delivery. Chinese Chemical Letters, 2024, 35(7): 109101-. doi: 10.1016/j.cclet.2023.109101

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(543)
HTML views(2)

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