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ACS Omega

Title:		Facile Room-Temperature Preparation of Flexible Polyurethane Foams from Carbon Dioxide Based Poly(ether carbonate) Polyols with a Reduced Generation of Acetaldehyde
Author(s):		Jang JH; Ha JH; Kim I; Baik JH; Hong SC;
Address:		"Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea. Energy Research Group, Research Institute of Industrial Science & Technology (RIST), Pohang 37673, Republic of Korea. Department of Polymer Science and Engineering, Pusan National University, Busan 609-735, Republic of Korea"
Journal Title:		ACS Omega
Year:		2019
Volume:		20190501
Issue:		5
Page Number:		7944 - 7952
DOI:		10.1021/acsomega.9b00808
ISSN/ISBN:		2470-1343 (Electronic) 2470-1343 (Linking)
Abstract:		"Carbon dioxide (CO(2)) is becoming more attractive as a renewable feedstock for chemical synthesis. In this study, CO(2) was incorporated into poly(ether carbonate) (PEC) polyols by using a double-metal-cyanide catalyst. By adjusting the CO(2) pressure, the content of propylene carbonate units in the PEC polyols was controlled, indicating successful and semiquantitative incorporation of CO(2) into the PEC polyols. Polyurethane foams (PUFs) with different propylene carbonate content were easily prepared at room temperature by employing the PEC polyols due to their adequate viscosity under ambient conditions. The firmness of the PUFs increased as the amount of propylene carbonate units increased due to the rigidity of the carbonate linkage, representing predictable mechanical properties. Interestingly, reduced generation of volatile organic compounds (VOCs) from the PUFs, namely acetaldehyde, was observed with a high content of propylene carbonate units at 120 degrees C, indicating good stability of the carbonate units against thermo-oxidative decomposition. This study demonstrates the importance of CO(2) as an environmental-friendly and renewable resource that can provide not only industrially important but also problem-solving products in terms of processability and low generation of VOCs"
Keywords:
Notes:		"PubMed-not-MEDLINEJang, Jeong Hyeon Ha, Jae Hee Kim, Il Baik, Joon Hyun Hong, Sung Chul eng 2019/08/29 ACS Omega. 2019 May 1; 4(5):7944-7952. doi: 10.1021/acsomega.9b00808. eCollection 2019 May 31"