RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER*

YU Jianming

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RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER*

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- RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER*
- Vol. 12, Issue 4, Pages: 366-371(1994)
- Affiliations：
  
  1.   Department of Textile Chemistry
  2.   Tianjin Institute of Textile Science and Technology
  3.   Tianjin 300160
- Author bio：
- Funds：
- DOI：
  CLC： TQ342
- Published：20 December 1994
- Accepted：
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[1]于建明.RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER[J].Chinese Journal of Polymer Science,1994,{4}(04):366-371.

YU Jianming. RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER*[J]. 1994, 12(4): 366-371.
[1]于建明.RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER[J].Chinese Journal of Polymer Science,1994,{4}(04):366-371. DOI：

YU Jianming. RELATION BETWEEN DYNAMIC LOSS MODULUS AND DIFFUSION COEFFICIENT IN A MODIFIED PET FIBER*[J]. 1994, 12(4): 366-371. DOI：

摘要

正

The mobility of polymer chain segments is shown to play a major role in the diffusion ofdisperse dyes in a copolymerization modified PET system

monoepoxy compoundCH

（CH

）

OCH

CH--CH

modified PET. The rate of dye diffusion （diffusion coefficient D） hasbeen related to the time-dependent mechanical property

dynamic loss modulus E"

which iscontrolled by the mobility of chain segments. In this modified copolyester system

the variance ofamount of modifier in the copolyester fibers causes the change in disperse dye diffusion coefficientto fiber

and in the dynamic loss modulus of the fibers

but the relationship between the diffusionand the dynamic loss modulus is in agreement with the theoretical relation derived by Bell andDumbleton. The relation obtained in this paper is:Ln D=-2. 28Ln E"+26. 81

Abstract

The mobility of polymer chain segments is shown to play a major role in the diffusion ofdisperse dyes in a copolymerization modified PET system

monoepoxy compoundCH

（CH

）

OCH

CH--CH

modified PET. The rate of dye diffusion （diffusion coefficient D） hasbeen related to the time-dependent mechanical property

dynamic loss modulus E"

which iscontrolled by the mobility of chain segments. In this modified copolyester system

the variance ofamount of modifier in the copolyester fibers causes the change in disperse dye diffusion coefficientto fiber

and in the dynamic loss modulus of the fibers

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