Poly macromer synthesis

The cyclic tin alkoxides have the additional advantage of offering a convenient synthetic pathway for the synthesis of macromers, triblock, and multiblock copolymers [81,82]. Macromers from l-LA [83],e-CL [84], and l,5-dioxepan-2-one (DXO) [85] have been synthesized as well as triblock poly(L-LA-b-DXO-b-L-LA) [86] and multiblock copoly(ether-ester) from poly(THF) and e-CL [87]. The polymerization proceeds by ring expansion and the cyclic structure is preserved until the polymerization is quenched by precipitation. 

Macromers by Controlled Initiation. New and unique graft copolymers can be prepared by copolymerizing macromers (macromolec-ular monomers) with conventional monomers. The synthesis of poly(butyl acrylate- -isobutylene), i.e., the first graft synthesis that involves carbocationic controlled initiation, has recently been accomplished by the following route (9) ... 

Bryant, S. J., Davis-Arehart, K. A., Luo, N., Shoemaker, R. K., Arthur, J. A. Anseth, K. S. (2004) Synthesis and characterization of photopolymerized multifunctional hydrogels water-soluble poly(vinyl alcohol) and chondroitin sulfate macromers for chondroc5te encapsulation. Macromolecules, 37, 6726-6733. 

He, S., Timmer, M. D., Yaszemski, M. J., Yasko, A. W., Engel, P. S. Mikos, A. G. (2001) Synthesis of biodegradable poly(propylene fumarate) networks with poly(propylene fumarate)-diacrylate macromers as crosslinking agents and characterization of their degradation products. Polymer, 42, 1251-1260. 

Jabbari, E. He, X. (2008) Synthesis and characterization of bioresorbable in situ crosslinkable ultra low molecular weight poly(lactide) macromer. J Mater Sci Mater Med, 19, 311-18. 

Jo, S., Shin, H., Shung, A. K., Fisher, J. P. Mikos, A. G. (2001b) Synthesis and characterization of oligo(poly(ethylene glycol) fumarate) macromer. Macromolecules, 34, 2839-44. 

Hacker MC, Klouda L, Ma BB, Kretlow JD, Mikos AG. Synthesis and characterization of injectable, thermally and chemically gelable, amphiphihc poly(N-iso-propylacrylamide)-based macromers. Biomacromolecules 2008 9(6) 1558-1570. 

Zhao, S., Cao, M., Li, H., Li, L., Xu, W. Synthesis and characterization of thermosensitive semi-ipn hydrogels based on poly(ethylene glycol)-co-poly(epsilon-caprolactone) macromer, n-isopropylacrylamide, and sodium alginate. Carbohydrate Research 345, 425 31 (2010)... 

Anionic and Cationic Polymerizations o Radical Polymerization Advances o Coordination Polymerizations 0 Step-Growth Polymerization Advances 0 Synthesis of Tactic Polymers o Stereoblock Copolymers o Dispersion Polymerizations o Cellulosic Graft Copolymers o Diels-Alder Polymer Forming Reactions o A New Path To Phenolic Resins o Nitrogen Heterocycle Polymerizations o Optically Active Polymers o Poly (Phenylene Sulfide) o Poly (Aryl Ethers) o (Poly (Aryl Ether Sulfones) o Epoxy and Isocyanate Resin Replacement o Azlactone Functionalized Oligomers o Epoxy Resin-Isocyanate Reactions o Chelating Polymers o Oxazoline Functionalized Polymers o Poly (Alkyl Methacrylates) o Macromers... 

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