Interchange reactions between poly(ethylene terephthalate) and its copolyesters

✍ Scribed by Cheng-Fang Ou

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 126 KB
• Volume: 68
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19980606)68:10<1591::aid-app7>3.0.co;2-c

✦ Synopsis

Poly(ethylene terephthalate) (PET) was blended with two kinds of co[poly-(ethylene terephthalate-p-oxybenzoate)] (POB-PET) copolyester, designated P46 and P64. The PET and POB-PET copolyester were combined in the ratios of 85/15, 70/30, and 50/50. The blends were melt-mixed in a Brabender Plasticorder at 275, 285, and 293ЊC for different times. The interchange reactions detected by proton nuclear magnetic resonance analysis occur during the processing at a greater level if the blending time increases. The interchange reactions are as a function of temperature, blending times, and composition of blends.