STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY

ZHAN Yongjian; YING Qicong; WU Meiyan; QIAN Renyuan

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STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY

Papers | Updated：2021-06-21

- STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY
- Vol. 9, Issue 2, Pages: 130-136(1991)
- Affiliations：
  
  1. Institute of Chemistry, Academia Sinica,Beijing,100080
  2. Academia Sinica
  3. Beijing 100080
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 June 1991
- Accepted：
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[1]詹永坚,应琦琮,吴美琰,钱人元.STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY[J].Chinese Journal of Polymer Science,1991,{4}(02):130-136.

ZHAN Yongjian, YING Qicong, WU Meiyan, et al. STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY[J]. 1991, 9(2): 130-136.
[1]詹永坚,应琦琮,吴美琰,钱人元.STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY[J].Chinese Journal of Polymer Science,1991,{4}(02):130-136. DOI：

ZHAN Yongjian, YING Qicong, WU Meiyan, et al. STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY[J]. 1991, 9(2): 130-136. DOI：

摘要

<正> The compositional homogeneity of a poly （ethylene terephthalate）-poly （tetramethylene ether） multiblock copolymer sample with low content of hard segment was examined by GPC

TLC

and solubility method. The copolymer sample was found to have a uniform composition as a function of elution volume over the major portion of sample from GPC method. However within one elution fraction

the copolymer chains

although having the same hydrodynamic volume

may have some difference in composition. Two fractions with different composition were obtained by precipitation in ethanol. Some low molar mass copolymers were also separated by a TLC technique from the copolymer sample.

Abstract

The compositional homogeneity of a poly （ethylene terephthalate）-poly （tetramethylene ether） multiblock copolymer sample with low content of hard segment was examined by GPC

TLC

the copolymer chains

although having the same hydrodynamic volume

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