Lee, SS Kim, J Park, M Lim, S Choe, CRM 2024-01-21T11:35:33Z 2024-01-21T11:35:33Z 2021-09-05 2001-11-01 0887-6266 https://pubs.kist.re.kr/handle/201004/140026 For the poly(butylene terephthalate) (PBT)/poly(ethylene terephthalate) blend system, the addition of a barium sulfate (BaSO4) particle, the surface of which was modified with a titanate coupling agent, suppressed the transesterification reaction. The polyester chain ends, considered one of the main sites of transesterification reactions, were blocked through a chemical reaction with the surface hydroxyl groups of the BaSO4 particle; a block copolymer-like architecture was obtained with a BaSO4 linkage. The formation of the block copolymer-like structure for the polyesters stuck to the BaSO4 particle facilitated crystallization by providing a crystallization nucleus without a significant transesterification reaction, resulting in higher mechanical properties. (C) 2001 John Wiley & Sons, Inc. English JOHN WILEY & SONS INC Transesterification reaction of the BaSO4-filled PBT/poly(ethylene terephthalate) blend Article 10.1002/polb.10011 1 JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, v.39, no.21, pp.2589 - 2597 JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 39 21 2589 2597 scie scopus 000171674700005 2-s2.0-0035504419 Polymer Science Polymer Science Article transesterification barium sulfate titanate coupling agent PBT/poly-(ethylene terephthalate) blends interfaces