A series of N-alkyl-p-toluenesulfonamides (ATSA) were synthesized and identified. The measurement of solution viscosity of poly(ethy1ene terephthalate) (PET) proved that ATSA does not react with PET during the melting process of PET/ATSA mixtures, and consequently does not cause any decrease of mole
The Influence of Aliphatic Low Molar Mass Polyesters on Crystallization of Poly(ethylene terephthalate)
β Scribed by Yanlei Yu; Ying Yu; Manna Jin; Gang Li; Haishan Bu
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 152 KB
- Volume
- 202
- Category
- Article
- ISSN
- 1022-1352
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The influence of different types of low and atmospheric pressure plasma on poly(ethylene terephthalate) (PET) has been studied in terms of changes in molar mass and molar mass distribution. Apart from a variation of plasma gases (oxygen, helium) different types of plasma (microwave, radio frequency,
The effect of branching on the crystallization behavior of poly(ethylene terephthalate) has been examined by nonisothermal crystallization studies, using DSC. It was found that branching causes a significant change in the crystallization behavior, in that the Avrami exponent n lies between 1 and 2,
Poly(ethy1ene terephthalate) was exposed to radiation from different kinds of low-pressure plasmas in an oxygen atmosphere. The lower wavelength limit of the spectrum investigated, X = 112 nm, is the cut-off of magnesium fluoride used for separating the specimen chamber from the plasma light source.