SYNTHESIS OF PTHF COMB-SHAPED POLYMER WITH PSt AS THE HANDLE

HE Tao; LIU Ye; PAN Caiyuan

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SYNTHESIS OF PTHF COMB-SHAPED POLYMER WITH PSt AS THE HANDLE

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS OF PTHF COMB-SHAPED POLYMER WITH PSt AS THE HANDLE
- Acta Polymerica Sinica Issue 6, Pages: 846-849(2002)
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- Published：20 December 2002，
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HE Tao, LIU Ye, PAN Caiyuan. SYNTHESIS OF PTHF COMB-SHAPED POLYMER WITH PSt AS THE HANDLE. [J]. Acta Polymerica Sinica (6):846-849(2002)
DOI：

HE Tao, LIU Ye, PAN Caiyuan. SYNTHESIS OF PTHF COMB-SHAPED POLYMER WITH PSt AS THE HANDLE. [J]. Acta Polymerica Sinica (6):846-849(2002) DOI：

摘要

Abstract

Poly(A-PTHF) can not be obtained from the conventional free radical polymerization

or atom transfer radical polymerization or reversible addition-fragmentation chain transfer polymerization of A-PTHF

due to low conversion and low degree of polymerization of poly (A-PTHF)．Thus

the homo-polymerization of A-PTHF macromonomer was performed under 60Co γ-irradiation with EPDTB(1-(ethoxycarbonyl)prop-1-yl dithiobenzoate) as initiator．After precipitated from methanol

pure poly(A-PTHF) was obtained．The block copolymerization of St was performed using Poly(A-PTHF) as the transfer agent and DCP(dicumy peroxide) as the initiator．Both of the homo-polymerization and the following copolymerization are controllable．The evidences are the linear relationship between In([M]0／[M]) and polymerization time

the linear evolution of Mn with conversion and the narrower polydispersities．The molecular structures of the poly(A-PTHF) and the block copolymer PSt-b-P(A-PTHF) were characterized by 1H-NMR as well as gel permeation chromatography(GPC)．The polymerization mechanism of the homo-polymerization of(A-PTHF) and the copolymerization of poly(A-PTHF)with St were discussed respectively．

关键词

大分子单体可控聚合梳型共聚物

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