In:
Macromolecular Chemistry and Physics, Wiley, Vol. 213, No. 14 ( 2012-07-26), p. 1499-1508
Abstract:
Four‐arm star‐shaped PCL polymers are synthesized using iPT as initiator for the controlled ROP of CL at 25–40 °C. The number‐average molecular weights of the star‐shaped Ti(O‐PCL) 4 with narrow molecular weight distributions are proportional to the molar ratios of monomer to initiator. The four‐branch star‐shaped structures of Ti(OPCL) 4 are confirmed through polymer hydrolysis monitoring by GPC, which indicates that the stability of the Ti—O bond in the core of the star‐shaped polymer chain increases with the increase of polymer molecular weights. The star‐shaped Ti(O‐PCL) 4 can act as a macroinitiator for successive block copolymerization with d,l ‐Lactide in bulk at 60 °C.
Type of Medium:
Online Resource
ISSN:
1022-1352
,
1521-3935
DOI:
10.1002/macp.v213.14
DOI:
10.1002/macp.201200073
Language:
English
Publisher:
Wiley
Publication Date:
2012
detail.hit.zdb_id:
1475026-0
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