1. Polymer network, structure-dynamics-property relationship

References:

1. Zhao Zheng, Lu Liu, Mu Li, Weigang Sun, Yuling Liang, Jiadong Chen, Junsheng Yang, Rongchun Zhang*, Panchao Yin*. Molecular complexation of polymers and metal oxide clusters for semi-crystalline thermoplastic anhydrous proton exchange membranes in fuel cells. J. Phys. Chem. Lett. 2023, 14(26), 5966-5974.

2. Hao Wang, Wansu Peng, Qi Wu, Yan Zhao, Shitai Wang, Yi Yang, Jinrong Wu*, Xiaoliang Wang*, and Rongchun Zhang.* Interplay of crosslinking structures and segmental dynamics in solid-liquid elastomers. Chin. J. Polym. Sci. 2022, 40, 1297-1306

3.Yuanming Zhai, Yong Luo, Xiaoyan Wang, Chunchun Zhang, Pengchi Deng, Hanjiao Chen, Rongchun Zhang*, Ruiying Bao, Yicun Zhou, Mingbo Yang, Wei Yang.* Understanding the molecular origin of the superior toughness of polyamide-6/polyketone blends by solid-state NMR spectroscopy. Polymer, 2022, 259, 125324.

4. Rongchun Zhang,* Chi Zhang, Zhijun Yang, Qiang Wu, Pingchuan Sun, and Xiaoliang Wang.* Hierarchical dynamics in transient polymer network cross-linked by orthogonal dynamic bonds. Macromolecules, 2020, 53, 5937-5949.

5.  张荣纯*，多相聚合物微观结构和分子间相互作用的固体NMR研究，高分子学报，2020, 51(2), 136-147. 

6. Fenfen Wang,† Shengli Chen,† Qiang Wu, Rongchun Zhang,* Pingchuan Sun.* Strain-induced structural and dynamic changes in segmental polyurethane elastomers. Polymer, 2019,163, 154-161

7. Xueting Zou, Xing Kui, Rongchun Zhang*, Yue Zhang, Xiaoliang Wang, Qiang Wu, Tiehong Chen, and Pingchuan  Sun*. Viscoelasticity and Structures in Chemically and Physically Dual-Cross-Linked Hydrogels: Insights from Rheology and Proton Multiple-Quantum NMR Spectroscopy. Macromolecules, 2017, 50, 9340-9352.

 2. Solid-State NMR Methodology 

References:

1. Zhiwei Yan, Rongchun Zhang*. Multiple acquisitions in a single scan: exhausting abundant 1H polarization at fast MAS. J. Magn. Reson., 2023, 346, 107338

2. Zhiwei Yan, Rongchun Zhang*. Rapid structural analysis of minute quantities of organic solids by exhausting 1H polarization in solid-state NMR spectroscopy under fast magic angle spinning. J. Phys. Chem. Lett. 2021, 12(50), 12067-12074

3. Zhiwei Yan, Yue-Qi Ye, Rongchun Zhang*.  2D HETCOR Solid-State NMR Spectroscopy for Multiphase Materials with Mobility Contrast. J. Phys. Chem. C, 2022, 126, 13311-13318

4. Rongchun Zhang, Kamal H. Mroue, and Ayyalusamy Ramamoorthy.* Proton-based ultrafast magic  angle spinning solid-state NMR spectroscopy, Acc. Chem. Res. 2017, 50, 1105-1113. 

5. Rongchun Zhang,* Vipin Agarwal,* Yusuke Nishiyama.* Proton Triple-Quantum (TQ) Solid-State NMR Spectroscopy at slow MAS~10 kHz.  J. Magn. Reson. Open. 2021, 8-9, 100020

6. Hao Wang, Zhiwei Yan, Dongjia Li, Xiaoliang Wang, and Rongchun Zhang*. Solid-State NMR Spectroscopy. Encyclopedia of Polymer Science and Technology, 2022

7. Yusuke Nishiyama,* Vipin Agarwal,* Rongchun Zhang.* Efficient symmetry-based g-encoded DQ recoupling sequences for suppression of  t1-noise in solid-state NMR spectroscopy at fast MAS. Solid State Nucl. Magn. Reson. 2021, 114, 101734.

8. Yusuke Nishiyama,* Vipin Agarwal,* Rongchun Zhang.* t1-Noise Suppression by r-Free Recoupling Sequences in Solid-State NMR for Structural Characterization of Fully Protonated Molecules at Fast MAS. J. Phys. Chem. C, 2020, 124, 26332-26343

3. Polymer materials: tunable viscoelasticity, topology

 and molecular interactions

References:

1. Yuling Liang*, Qi Liu, Zhiwei Yan, Yan Zhao, Yannan Li, Jingchao Ai, Yiliu Liu, Kan Yue, Na Li, Panchao Yin, Wen Tang, Xiaoliang Wang, Rongchun Zhang*. Tunable topology and viscoelasticity of polymer networks via anion-adaptive metal-organic macrocycles. Macromolecules, 2024, 57, 2609

2.  Chi Zhang†, Zhijun Yang†, Nghia Tuan Duong, Xiaohui Li, Yusuke Nishiyama, Qiang Wu, Rongchun Zhang*, Pingchuan Sun*. Using dynamic bonds to enhance the mechanical performance: from microscopic molecular interactions to macroscopic properties. Macromolecules, 2019, 52, 5014-5025.

3. Zhijun Yang, Fenfen Wang, Chi Zhang, Jian Li, Rongchun Zhang*, Qiang Wu, Tiehong Chen, Pingchuan Sun*.

   Bio-inspired self-healing polyurethanes with multiple stimulus responsiveness. Polym. Chem. 2019, 10, 3362-3370

4. Xiling Niu, Fenfen Wang, Xiaohui Li, Rongchun Zhang,* Qiang Wu, Pingchuan Sun.* Using Zn2+ ionomer to catalyze transesterification reaction in Epoxy Vitrimer. Ind. Eng. Chem. Res. 2019,58, 5698-570

5.  Mei Li, Rongchun Zhang,* Xiaohui Li, Qiang Wu, Tiehong Chen, and Pingchuan Sun*. High-performance recyclable cross-linked polyurethane with orthogonal dynamic bonds: the molecular design, microstructures, and macroscopic properties. Polymer, 2018, 148, 127-137