Kinetics and mechanism studies on scandium calix[6]arene complex initiating ring-opening polymerization of 2,2-dimethyltrimethylene carbonate

Science in China, Series B: Chemistry

Volumn 50, Issue 5, 2007, Pages 648-653

  Gou, PengFei ^a   Zhu, WeiPu ^a   Shen, ZhiQuan ^a  

^a ZHEJIANG UNIVERSITY   (China)

Author keywords

2,2 dimethyltrimethylene carbonate (DTC); Polycarbonates; Ring opening polymerization; Scandium calixarene complex

Indexed keywords

CHEMICAL BONDS; MOLECULAR WEIGHT; MONOMERS; POLYCARBONATES; RING OPENING POLYMERIZATION; SCANDIUM COMPOUNDS;

2,2-DIMETHYLTRIMETHYLENE CARBONATE (DTC); SCANDIUM CALIXARENE COMPLEX; SCANDIUM ISOPROPOXIDE;

REACTION KINETICS;

EID: 34748887146     PISSN: 10069291     EISSN: None     Source Type: Journal    
DOI: 10.1007/s11426-007-0073-1     Document Type: Article

References (16)

1. Okada M. Chemical syntheses of biodegradable polymers. Prog Polym Sci, 2002, 27(1): 87-133
2. Schmidt P, Keul H, Höcker H. Copolymerization of 2,2-dimethyl-trimethylene carbonate and L,L-lactide. Macromolecules, 1996, 29(11): 3674-3680
3. Colomb E, Novat C, Hamaide T. Heterogeneous catalytic ring opening polymerization of 2,2-dimethyltrimethylene carbonate with metal alkoxides as initiators in protic conditions. Macromol Chem Phys, 1999, 200(11): 2525-2532
4. Kricheldorf H R, Weegen-Schulz B. Polymers of carbonic acid. XIV. High molecular weight poly (trimethylene carbonate) by ring-opening polymerization with butyltin chlorides as initiators. J Polym Sci Pol Chem, 1995, 33(13): 2193-2201
5. Ling J, Shen Z Q, Huang Q H. Novel single rare earth aryloxide initiators for ring opening polymerization of 2,2-dimethyltrimethylene carbonate. Macromolecules, 2001, 34(22): 7613-7616
6. Shen Y Q, Shen Z Q, Zhang Y F, Yao K M. Novel rare earth catalysts for the living polymerization and block copolymerization of -capro-lactone. Macromolecules, 1996, 29(26): 8289-8295
7. Chen W, Ling J, Shen Z Q. Preparation and polymerization mechanism of dihydroxy-capped PCL, poly (CL-b-PEG-b-CL) and poly (DTC-b-CL-b-DTC). Sci China Ser B-Chem, 2005, 35(2): 94-102
8. Ling J, Zhu W P, Shen Z Q. Controlling ring-opening copolymerization of -caprolactone with trimethylene carbonate by scandium tris (2,6-di-tert-butyl-4- methylphenolate). Macromolecules, 2004, 37(3): 758-763
9. 3-catalyzed ring-opening poly-merization of lactones. Macromolecules, 2000, 33(5): 1497-1499
10. Gutsche C D, Dhawan B, No K H, Muthukrishnan R. Calixarenes. 4. The synthesis, characterization, and properties of the calixarenes from p-tert-butylphenol. J Am Chem Soc, 1981, 103(13): 3782-3792
11. Molenveld P, Engbersen J, Reinhoudt D N. Dinuclear metallo- phosphodiesterase models: application of calix[4]arenes as molecular scaffolds. Chem Soc Rev, 2000, 29(2): 75-86
12. Shen Z Q. Catalytic activities of rare-earth calixarene complexes in polymer synthesis. Chin J Polym Sci, 2005, 23(6): 593-602
13. Ling J, Shen Z Q, Zhu W P. Synthesis, characterization, and mechanism studies on novel rare-earth calixarene complexes initiating ring-opening polymerization of 2,2-dimethyltrimethylene carbonate. J Polym Sci Pol Chem, 2003, 41(9): 1390-1399
14. Zhu W P, Ling J, Xu H, Shen Z Q. Ring-opening polymerization of trimethylene carbonate catalyzed by novel single component rare earth calixarene complexes. Chin J Polym Sci, 2005, 23(4): 407-410
15. Zhu W P, Ling J, Xu H, Shen Z Q. Copolymerization of trimethylene carbonate and 2,2-dimethyltrimethylene carbonate by rare earth calixarene complexes. Polymer, 2005, 46(19): 8379-8385
16. Keul H, Bächer R, Höcher H. Anionic ring-opening polymerization of 2,2-dimethyltrimethylene carbonate, Macromol Chem Phys, 1986, 187(11): 2579-2589