Shengxiang Ji                                      季生象

Key Laboratory of Polymer Ecomaterials          生态环境高分子材料重点实验室
Changchun Institute of Applied Chemistry        中国科学院长春应用化学研究所
Chinese Academy of Sciences                         
Changchun 130022, China

sji@ciac.ac.cn
 http://sji.ciac.jl.cn

2011.3-present    Professor, Changchun Institute of Applied Chemistry, CAS
2009.1-2011.2     Assistant Scientist, University of Wisconsin
2006.9-2008.12   Postdoc, University of Wisconsin-Madison [with Paul Nealey]
2001.9-2006.8     PhD, University of Minnesota-Twin Cities  [with Tom Hoye and Chris Macosko]
1998.9-2001.7     MS, Institute of Chemistry, Chinese Academy of Sciences
1994.9-1998.7     BS, Ocean University of China

 

2011.3-至今         研究员, 博导，中科院长春应化所

2009.1-2011.2     助理科学家, 美国威斯康星大学化工系

2006.9-2008.12   博士后, 美国威斯康星大学化工系

2001.9-2006.8     博士, 美国明尼苏达大学化学系

1998.9-2001.7     硕士, 中国科学院化学研究所

1994.9-1998.7     学士, 中国海洋大学 

Directed Assembly of Block Copolymers
最小化 最大化
Directed assembly of block copolymers
 
Directed assembly of block copolymers on chemical patterns has been proven to have potential applications in the fabrication of integrated circuits and storage media. Our research mainly focuses on new materials and processes for directed assembly of block copolymers, with an emphasis on:
• Synthesis and directed assembly of high χ block copolymers
• Directed assembly of triblock copolymers


Biomass-based polymers Biomass-based polymers
最小化 最大化
1. Amino acid-based polymers
 
Amino acid is a biorenewable resource and mainly produced by fermentation of hydrolysis products of biomass. The use of amino acid as the starting materials to produce novel biomass-based polymers is of great significance for not only providing a new direction for the amino acid industry but also tempering our dependence on fossil oil. Our research mainly focuses on large-scale synthesis of functional polymers from glutamic acid and lysine.

                                  

 
2.Cellulose-based polymers
• Hydrolysis of cellulose
Biorefinery provides an alternative approach to solving the current dependence on fossil fuels for energy and chemical building blocks. Our research focuses on the development of new strategies to efficiently hydrolyze celluloses to industry-relevant intermediates, e.g. 5-hydroxymethylfurfural (HMF).

• Functional materials from cellulose
Functionalization of cellulose is difficult due to its poor solubility in common solvents. Our research focuses on the development of new strategies to functionalize celluloses with uniformly distributed functional groups, with an emphasis on: regioselective functionalization of cellulose and cellulose-based chiral stationary phase .

 Papers
最小化 最大化
2019
46. Pang, Y. Y.; Jin, X. S.; Huang, G. C.; Wan, L.*; Ji, S. X.* "Directed Self-assembly of Styrene-Methyl Acrylate Block Copolymers with Sub-7 nm Features via Thermal Annealing", Macromolecules 2019, 52, 2987-2994.[Link]
2018
45. Zhang, X. S.; Ji, S. X.* "Synthesis and Directed Self-assembly of Cylinder-forming Poly(styrene-b-lactide) Block Copolymers", Chinese Journal of Applied Chemistry 《应用化学》2018, 35, 1420-1426.[Link]
 
44. Huang, G. C.; Ji, S. X.* "Effect of Halogen Chain End Fidelity on the Synthesis of Poly(methyl methacraylate-b-styrene) by ATRP", Chinese Journal of Polymer Science 2018, 36, 1217-1224.[Link]
 
43. Zhang, X. S.; He, Q. B.; Chen, Q.; Nealey, P. F.; Ji, S. X.* "Directed Self-Assembly of High χ Poly(styrene-b-(lactic acid-alt-glycolic acid)) Block Copolymers on Chemical Patterns via Thermal Annealing", ACS Macro Letters 2018, 7, 751-756. [Link]
 
42. Liu, Y. D.; Ji, S. X.* "Determination of the maximum thickness for directed self-assembly of cylinder-forming PS-b-PMMA films on chemical patterns", Molecular Systems Design & Engineering 2018, 3, 342-347.[Link]
 
41. Pang, Y. Y.; Ji, S. X.* "Effect of Ink Molecular Weights and Annealing Conditions on Molecular Transfer Printing", Chinese Journal of Polymer Science 2018, 36, 697-702.[Link]
 
2017
40. Pang, Y. Y.; Wan, L.; Huang, G. C.; Zhang, X. S.; Jin, X. S.; Xu, P.; Liu, Y. D.; Han, M. M.; Wu, G. P.; Ji, S. X.* "Controlling Block Copolymer-Substrate Interactions by Homopolymer Brushes/Mats", Macromolecules 2017, 50, 6733-6741.[Link]
 
39. Chen, J. J.; Ding, J. X.*; Wang, Y. C.; Cheng, J. J.*; Ji, S. X.; Zhuang, X. L.; Chen, X. S.* "Sequentially Responsive Shell-Stacked Nanoparticles for Deep Penetration into Solid Tumors", Advanced Materials 2017, 29, 1701170. [Link]
 
38. Han, M. M.; Jin, X. S.; Yang, H.; Liu, X.; Liu, Y. D.; Ji, S.X.* "Controlled Synthesis, Immobilization and Chiral Recognition of Carboxylic Acid Functionalized Cellulose Tris(3,5-dimethylphenylcarbamate)", Carbohydrate Polymers 2017, 172, 223-229.[Link]
 
37. Yang, G.-W.; Wu, G.-P.*; Chen, X.; Xiong, S.; Arges, C. G.; Ji, S. X.; Nealey, P. F.*; Lu, X.-B.; Darensbourg, D. J.; Xu, Z.-K.* "Directed Self-Assembly of Polystyrene-b-poly(propylene carbonate) on Chemical Patterns via Thermal Annealing for Next Generation Lithography", Nano Letters 2017, 17, 1233-1239. [Link]
 

36. Han, M. M.; Liu, X; Zhang, X. S.; Pang, Y. Y.; Peng, X.; Guo, J. W.; Liu, Y. D.; Zhang, S. Y.; Ji, S. X.* "5-Hydroxymethyl-2-vinylfuran: A biomass-based solvent-free adhesive", Green Chemistry 2017, 19, 722-728. [Link]
2016

35. Han, M. M.; Liu, X.; Huang, G. C.; Liu, Y. D.; Ji, S. X.* "Phosphoric acid doped polybenzimidazole as an heterogeneous catalyst for selective and efficient dehydration of saccharides to 5-hydroxymethylfural", RSC Advances 2016, 6, 47890-47896.[Link]

34. Jin, X. S.; Pang, Y. Y.; Ji, S. X.* "From Self-Assembled Monolayers to Chemically Patterned Brushes: Controlling the Orientation of Block Copolymer Domains in Films by Substrate Modification", Chinese Journal of Polymer Science 2016, 34, 659-678.(review)[Link]

33. Huang, G. C.; Qiu, B. T.; Liu, Y. D.; Zhao, H.; Ji, S. X.* "Synthesis and Characterization of Crosslinked Porous Poly(styrene-co-divinylbenzene) Microspheres with Tunable Particle and Pore Diameters", Chinese Journal of Applied Chemistry 《应用化学 》2016, 33, 406-411. [Link]

32. Ji, S. X.*; Wan, L.; Liu, C. C.; Nealey, P. F. "Directed Self-assembly of Block Copolymers on Chemical Patterns: A Platform for Nanofabrication", Progress in Polymer Science 2016, 54-55, 76-127.  (review) [Link]

31. Wan, L.; Ji, S. X.; Liu, C. C.; Craig, G. S. W.; Nealey, P. F.* "Directed self-assembly of solvent-vapor-induced non-bulk block copolymer morphologies on nanopatterned substrates", Soft Matter 2016, 12, 2914-2922.[Link]

30. Li, X.;# Liu, Y. D.; # Wan, L.; Li, Z. L.; Suh, H.; Ren, J. X.; Ocola, L. E.; Hu, W. B.; Ji, S. X.*; Nealey, P. F.* "Effect of Stereochemistry on Directed Self-Assembly of Poly(styrene-b-lactide) Films on Chemical Patterns" ", ACS Macro Letters 2016, 5, 396-401.[Link]
2015

29. Liu, Y. D.; Huang, G. C.; Pang, Y. Y.; Han, M. M.; Ji, S. X.* "One-pot synthesis of thermoresponsive cellulose based miktoarm graft copolymer by simultaneous ATRP and ROP", Journal of Renewable Materials 2015, 3, 113-119.[Link]

28. Liu, Y. D.; Jin, X. S.; Zhang, X. S.; Han, M. M.; Ji, S. X.* "Self-assembly and chiroptical property of poly(N-acryloyl-L-amino acid) grafted celluloses synthesized by RAFT polymerization", Carbohydrate Polymers 2015, 117, 312-318.[Link]
2014

27. Jin, X. S.; Zhang, X. S.; Wan, L.; Nealey, P. F.; Ji, S. X.*  "Fabrication of chemical patterns from graphoepitaxially assembled  block copolymer films by molecular transfer printing"，Polymer 2014, 55, 3278-3283.[Link]
2013

26. Thode, C. J.; Cook, P. L.; Jiang, Y.; Onses, M. S.; Ji, S. X.; Himpsel, F. J.; Nealey, P. F.*"In situmetallization of patterned polymer brushes created by molecular transfer print and fill", Nanotechnology 2013, 24, 155602.[Link]

25. Liu, C.; Ramírez-Hernández, A.; Han, E.; Craig, G. S. W.; Tada, Y.; Yoshida, H.; Kang, H.; Ji, S. X.; Gopalan, P.; de Pablo, J. J.; Nealey, P. F.* "Chemical Patterns for Directed Self-Assembly of Lamellae-Forming Block Copolymers with Density Multiplication of Features", Macromolecules 2013, 46, 1415-1424. [Link]
2012

24.  Ji, S. X.*; Nagapal, U.; Liu, G.; Delcambre, S. P.; Müller, M.; de Pablo, J. J.; Nealey, P. F.* "Directed Assembly of Non-equilibrium ABA Triblock Copolymer Morphologies on Nanopatterned Substrates", ACS Nano 2012, 6, 5440-5448. [Link]

23. Delcambre, S. P.; Ji, S.X.; Nealey, P. F.* "Mechanical properties of polymeric nanostructures fabricated through directed self-assembly of symmetric diblock and triblock copolymers", Journal of Vacuum Science and Technology B 2012, 30, 06F204. [Link]

2011

22.  Ji, S. X.; Nagpal, U.; Liao, W.; de Pablo, J. J.; Nealey, P. F. "Three-dimensional Directed Assembly of Block Copolymers together with Two-dimensional Square and Rectangular Nanolithography", Advanced Materials, 2011, 23, 3692-3697. [Link]
21.  Ji, S. X.; Liu, C.; Liao, W.; Fenske, A. L.; Craig, G. S. W.; Nealey, P. F. "Domain Orientation and Grain Coarsening in Cylinder-Forming Poly(styrene-b-methyl methacrylate) Films", Macromolecules, 2011, 44, 4291-4300.[Link]



Prior to CIAC Prior to CIAC
最小化 最大化

20.  Onses, M. S.; Thode, C. J.; Liu, C.; Ji, S.; Cook, P. L.; Himpsel, F. J.; Nealey, P. F. "Site-Specific Placement of Au Nanoparticles on Chemical Nano-Patterns Prepared by Molecular Transfer Printing from Block Copolymer Films", Advanced Functional Materials, 2011, 21, 3074-3082.[Link]
19.  Liu, C.; Han, E.; Onses, M. S.; Thode, C. J.; Ji, S.; Gopalan, P.; Nealey, P. F. "Fabrication of lithographically-defined chemically patterned polymer brushes and mats", Macromolecules, 2011, 44, 1876-1885.[Link]
18.  Zhang, J.; Ji, S.; Song, J.; Lodge, T. P.; Macosko, C. W. "Flow Accelerates Interfacial Coupling Reactions", Macromolecules 2010, 43, 7617-7624.[Link]
17.   Ji, S.; Liao, W.; Nealey, P. F. "Block Cooligomers: A Generalized Approach to Controlling the Wetting Behaviors of Block Copolymer Thin Films", Macromolecules 2010, 43, 6919-6922.[Link]
16. Ji, S.; Liu, C.; Liu, G.; Nealey, P. F. "Molecular Transfer Printing Using Block Copolymers", ACS Nano 2010, 4, 599-609.[Link][Link to US patent][Link to New Scientist]

15. Hong, A. J.; Liu, C.; Wang, Y.; Kim, J.; Xiu, F.; Ji, S.; Zou, J.; Nealey, P. F.; Wang, K. L. "Metal Nanodot Memory by Self-assembled Block Copolymer Lift-Off", Nano Letters 2010, 10, 224-229.[Link]
14. Liu, G.; Ji, S.; Karl, S. O.; Craig, G. S. W.; Nealey, P. F.; Himpsel, F. J. "Modification of the Wetting Behavior of PS Brush Layer by Inserting PMMA Molecules", Journal of Vacuum Science and Technology B. 2009, 27, 3038-3042.[Link]
13. Ji, S.; Zhu, Z.; Hoye, T. R.; Macosko, C. W. "Maleimide Functionalized Poly(ε-caprolactone)-b-poly(ethylene glycol) (PCL-PEG-MAL): Synthesis, Nanoparticle Formation, and Thiol Conjugation", Macromolecular Chemistry and Physics 2009, 210, 823-831.[Link]
12. Liu, G.; Stoykovich, M. P.; Ji, S.; Steun, K. O.; Craig, G. S. W.; Nealey, P. F. "Phase Behavior and Dimensional Scaling of Symmetric Block Copolymer-Homopolymer Ternary Blends in Thin Films", Macromolecules 2009, 42, 3063-3072.[Link]
11. Ji, S.; Liu, C.; Son, J.-G.; Gotrik, K.; Craig, G. S. W.; Gopalan, P.; Himpsel, F. J.; Char, K. Nealey, P. F."Generalization of the Use of Random Copolymers to Control the Wetting Behaviors of Block Copolymer Films", Macromolecules 2008, 41, 9098-9103.[Link]
10. Ji, S.; Liu, G.; Zheng, F.; G. S. W. Craig; Himpsel, F. J.;Nealey, P. F. "Preparation of Neutral Wetting Brushes for Block Copolymer Films from Homopolymer Blends", Advanced Materials 2008, 20, 3054-3060.[Link]
9. Ji, S.; Hoye, T. R.; Macosko, C. W. "Diamino Telechelic Polybutadienes for Solventless Styrene-butadiene-styrene (SBS) Triblock Copolymer Formation", Polymer 2008, 49, 5307-5313.[Link]
8. Gindy, M. E.; Ji, S.; Hoye, T. R.; Panagiotopoulos, A. Z.; Prud'homme, R. K. "Preparation of Poly(ethylene glycol) Protected Nanoparticles with Variable Bioconjugate Ligand Density", Biomacromolecules 2008, 9, 2705-2711.[Link]
7. Zhu, Z.; Anacker, J. L.; Ji, S.; Hoye, T. R.; Macosko, C. W.; Prud'homme, R. K. "Formation of Polymeric Drug Nanoparticles via Reactive Impingement Jet Mixing", Langmuir 2007, 23, 10499-10504. [Link]
6. Ji, S.; Hoye, T. R.; Macosko, C. W. "Primary Amine (-NH2) Quantification in Polymers: Functionality by19F NMR Spectroscopy", Macromolecules 2005, 38, 4679-4686.[Link]
5. Ji, S.; Hoye, T. R.; Macosko, C. W. "Controlled Synthesis of High Molecular Weight Telechelic Polybutadienes by Ring-Opening Metathesis Polymerization", Macromolecules 2004, 37, 5485-5489.[Link]
4. Ji, S.; Li, Z.; Zhou, X.; Cao, M.; Dai, D.; Zhang, R.; Li, S.; Ye, C. "Silica-based Hybrid Nonlinear Optical Chromophore-trapping Film Prepared by Sol-gel Polymerization", Polymer for Advanced Technology 2003, 14, 254-259.[Link]
3. Ji, S.; Hu, X.; Zhou, X.; Dai, D.; Zhang, R. "Preparation of A New Ladderlike Oligosilsesquioxane with Lateral Aryl Ester Group", Reactive and Functional Polymer 2001, 50, 23-31.[Link]
2. Yuan, Q.; Ji, S.; Zhang, R.; He, C.; Chung, N. T. "Synthesis and Characterization of A Novel Oligosiloxane Containing Alternative Ladderlike Structure via Charge-transfer Interaction", Polymer International 2001, 50, 643-650.[Link]
1. Han, S.; Li, Z.; Ji, S.; Dai, D.; Zhang, R.; Zhu, C.; Wang C. "Nonlinear Optical Polymer Films Based on Sol-Gel Derived Polysilsesquioxane with Pendant Chromophoric Subunits Embedded in Size-matched Pores", Journal of Sol-Gel Science and Technology 2000, 18, 137-144.[Link]


Patents Patents
最小化 最大化

专利申请：

16. 刘骁  "一种支化聚氨基酸抑菌剂及应用"，国际专利申请： PCT/CN2019/072812

15. 张潇飒  "一种嵌段共聚物、制备周期性纳米结构的引导组装方法和嵌段共聚物模板"，中国专利申请： 201810448232.1

14. 刘骁  "一种支化聚氨基酸抑菌剂及应用"，中国专利申请： 201810096212.2

13. 刘骁  "一种支化聚氨基酸抑菌剂及应用"，中国专利申请： 201810096221.1

12. 刘骁  "一种聚氨基酸抑菌剂及应用"，中国专利申请： 201810097056.1

11. 逄媛媛 "纳米结构的引导组装方法"，中国专利申请： 201710707303.0

10. 刘亚栋 "一种交联聚氨基酸型金属吸附剂、制备方法及吸附金属的方法"，中国专利申请：201710153118.1

9. 刘亚栋，"一种聚氨基酸组合物及其制备方法和应用"，中国专利申请：201710154175.1

 

授权专利：

8. 季生象， 韩苗苗， 孙忠明，闵雪. "一种催化转化糖合成5-羟甲基糠醛的催化剂以及一种催化转化糖合成5-羟甲基糠醛的方法"，中国专利：201710470358.4 （2019.09.13）

7. 季生象，逄媛媛，万雷，刘亚栋，韩苗苗 "引导嵌段共聚物形成纳米结构的方法"，中国专利： ZL201710018823.0 (2019.09.13)

6. 王松，季生象，刘亚栋，韩苗苗 "一种聚酯酰胺及其制备方法" 中国专利 ZL 201410066476.5 (2017.01.11)

5. 季生象，刘亚栋，李晓，保罗·富兰克林·内利 "纳米结构的引导组装方法" 中国专利 ZL 201410636657.7 (2016.09.28)

4. 韩苗苗，杨晗，靳潇洒，刘亚栋，季生象 "一种胶粘剂及其制备方法" 中国专利 ZL 201410059800.0 (2016.03.30)

 

加入应化所前：

3. Nealey, P. F.; Ji, S. "Directed Assembly of Poly(styrene-b-glycolic acid) Block Copolymer Films", US Patent Application No. US 2014/0010990.

2. Nealey, P. F.; Ji, S. "Patterning in the Directed Assembly of Block Copolymers Using Triblock or Multiblock Copolymers", US 9372398 (2016). [PDF]

1. Nealey, P. F.; Ji, S. "Molecular Transfer Printing Using Block Copolymers", US 8133341 (2012) [PDF]; WO 2009/146086.