SYNTHESIS AND CHARACTERIZATION OF BLOCK POLYMER OF ALTERNATING COPOLYMERS

HAN Xiaozu; ZHANG Bolan; ZHANG Zhaomou; ZHANG Xitian; LIU Shuhai

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SYNTHESIS AND CHARACTERIZATION OF BLOCK POLYMER OF ALTERNATING COPOLYMERS

Papers | Updated：2021-06-21

- SYNTHESIS AND CHARACTERIZATION OF BLOCK POLYMER OF ALTERNATING COPOLYMERS
- Vol. 4, Issue 4, Pages: 303-308(1986)
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- Published：20 December 1986
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HAN Xiaozu, ZHANG Bolan, ZHANG Zhaomou, et al. SYNTHESIS AND CHARACTERIZATION OF BLOCK POLYMER OF ALTERNATING COPOLYMERS[J]. 1986, 4(4): 303-308.
DOI：

HAN Xiaozu, ZHANG Bolan, ZHANG Zhaomou, et al. SYNTHESIS AND CHARACTERIZATION OF BLOCK POLYMER OF ALTERNATING COPOLYMERS[J]. 1986, 4(4): 303-308. DOI：

摘要

Block polymer of alternating copolymers

poly[(ST-a-MA)-b(IP-a-MMA)-b-(ST-a-MA)](I)

has been synthesized in the presence of AlEt1.5Cl1.5

by using Mn2(CO)10/CBr4. initiation system.The GPC results indicate that there is no unreacted prepolymer in I purified by precipitation andfractionation. The study of NMR shows that every block of polymer I has alternating structure. The dynamicmechanical properties of I measured by torsional braid method indicate that the polymer has two Tg s

being 38 and 75℃

respectively.The transmission electron micrographs of I show they have two phase structure and the domain size increases with increasing molecular weight of hard block.

Abstract

Block polymer of alternating copolymers

poly[(ST-a-MA)-b(IP-a-MMA)-b-(ST-a-MA)](I)

has been synthesized in the presence of AlEt1.5Cl1.5

being 38 and 75℃

respectively.The transmission electron micrographs of I show they have two phase structure and the domain size increases with increasing molecular weight of hard block.

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