HIGH-RESOLUTION SOLID-STATE NMR STUDIES ON THE MISCIBILITY AND DYNAMICS IN UNSATURATED POLYESTER/PEO-PPO-PEO TRIBLOCK COPOLYMER THERMOSET BLEND

LI Xinjuan; DANG Qinqin; LIN Hai; WANG Yinong; SUN Pingchuan; LI Baohui; JIN Qinghua; DING Datong

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HIGH-RESOLUTION SOLID-STATE NMR STUDIES ON THE MISCIBILITY AND DYNAMICS IN UNSATURATED POLYESTER/PEO-PPO-PEO TRIBLOCK COPOLYMER THERMOSET BLEND

Research Bulletin | 更新时间：2021-03-19

- HIGH-RESOLUTION SOLID-STATE NMR STUDIES ON THE MISCIBILITY AND DYNAMICS IN UNSATURATED POLYESTER/PEO-PPO-PEO TRIBLOCK COPOLYMER THERMOSET BLEND
- Acta Polymerica Sinica Issue 4, Pages: 636-639(2006)
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- Published：20 July 2006，
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LI Xinjuan, DANG Qinqin, LIN Hai, WANG Yinong, SUN Pingchuan, LI Baohui, JIN Qinghua, DING Datong. HIGH-RESOLUTION SOLID-STATE NMR STUDIES ON THE MISCIBILITY AND DYNAMICS IN UNSATURATED POLYESTER/PEO-PPO-PEO TRIBLOCK COPOLYMER THERMOSET BLEND. [J]. Acta Polymerica Sinica (4):636-639(2006)
DOI：

LI Xinjuan, DANG Qinqin, LIN Hai, WANG Yinong, SUN Pingchuan, LI Baohui, JIN Qinghua, DING Datong. HIGH-RESOLUTION SOLID-STATE NMR STUDIES ON THE MISCIBILITY AND DYNAMICS IN UNSATURATED POLYESTER/PEO-PPO-PEO TRIBLOCK COPOLYMER THERMOSET BLEND. [J]. Acta Polymerica Sinica (4):636-639(2006) DOI：

摘要

Abstract

An nanostructured thermoset blend of unsaturated polyester(UPR) and PEO—PPO-PEO triblock copolymer was prepared and characterized by solid-state NMR and other techniques．It is concluded that the blend is microphase separated and the determined long period is 20 nm．A distinct dynamic difference between the cured-UPR matrix and block coploymers was observed by 1D and 2D NMR experiments

the formation of PEO crystalline domains was inhibited in the blend．The PEO blocks are panially miscible with the cured—UPR matrix．Upon curing

part of the mobile PEO was locally expelled from the cured—UPR matrix and formed dispersed mierophase together with the mobile PPO

the residual immobilized PEO blocks were intimately mixed with the partially cured-UPR

and they formed an interphase region．

关键词

嵌段共聚物不饱和聚酯热固性共混物固体核磁共振

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Guangzhou Institute of Chemistry, Chinese Academy of Sciences

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