New block copolymers II. Synthesis and characterization of an ABA-type block copolymer
β Scribed by Subhas C. Shit; Beni Madhab Mahato; Mrinal M. Maiti; Sukumar Maiti
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 433 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0021-8995
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ABA-type block copolymers of poly(trimethylene carbonate) with poly(ethylene glycol) ( M n 6820), PTMC-b-PEG-b-PTMC, were synthesized by the ring-opening polymerization of 1,3-dioxan-2-one (trimethylene carbonate) in the presence of poly-(ethylene glycol) with stannous octoate catalyst, and the copo
Block copolymer containing segments of poly(dimethylsiloxane) (PDMS) and ketonic resins were synthesized. Dihydroxy-terminated PDMS were reacted with the isophorone diisocyanate (IPDI) to obtain the diisocyanate-terminated PDMSs (urethane). These urethanes were reacted with reactive hydroxyl groups