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Journal of Polymer Research

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01-05-2021 | ORIGINAL PAPER

Synthesis and characterization of an isocyanate-terminated hyperbranched polymer and its waterborne study

Authors: Jie Zhang, Hui-Ting Tian, Yu-Ting Zhang, Chun-Pu Hu, Zhi-Ping Zhang

Published in: Journal of Polymer Research | Issue 5/2021

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Abstract

An isocyanate-terminated hyperbranched polymer (HBI) was successfully synthesized by reacting hyperbranched polyester (Boltorn^TM HB-20) with isophorone diisocyanate (IPDI). Gel permeation chromatography (GPC) was used to monitor the molecular weight and its distribution changes during the synthesis. The structure and composition of IPDI were characterized by ¹H and ¹³C nuclear magnetic resonance (NMR) spectroscopy. The structure of HBI was confirmed by one-dimensional ¹H, ¹³C NMR, and distortionless enhancement by polarization transfer (DEPT) NMR spectroscopy as well as two-dimensional heteronuclear multiple bond coherence (2D-HMBC) and heteronuclear single quantum coherence (HSQC) NMR spectroscopy. Furthermore, HBI was reacted with methoxypolyethylene glycols (MPEG) to obtain a water-dispersible polyisocyanate with hyperbranched structure.

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Title: Synthesis and characterization of an isocyanate-terminated hyperbranched polymer and its waterborne study
Authors: Jie Zhang
Hui-Ting Tian
Yu-Ting Zhang
Chun-Pu Hu
Zhi-Ping Zhang
Publication date: 01-05-2021
Publisher: Springer Netherlands
Published in: Journal of Polymer Research / Issue 5/2021
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI: https://doi.org/10.1007/s10965-021-02499-w

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