期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 36, 期 4, 页码 398-404出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201400663
关键词
lignin; star polymer; thermoplastic elastomer; UV absorption
资金
- Forestry Public Sector Research Fund of State Forestry Administration of China [201404604]
- State Key Laboratory of Motor Vehicle Biofuel Technology [KFKT2013011]
- Fundamental Research Funds for the Central Non-profit Research Institution of Forest New Technology, CAF [CAFINT2010K04]
- National Natural Science Foundation of China [31200447]
- Jiangsu Provincial Natural Science Foundation of China [BK20131070]
- China International Science and Technology Cooperation [2011DFA32440]
- National Science Foundation [DMR-1252611]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1252611] Funding Source: National Science Foundation
Lignin-grafted copolymers, namely lignin-graft-poly(methyl methacrylate-co-butyl acrylate) (lignin-g-P(MMA-co-BA)), are synthesized via grafting from atom transfer radical polymerization (ATRP) with the aid of lignin-based macroinitiators. By manipulating the monomer feed ratios of MMA/BA, grafted copolymers with tunable glass transition temperatures (-10-40 degrees C) are obtained. These copolymers are evaluated as sustainable thermoplastic elastomers (TPEs). The results suggest that the mechanical properties of these TPEs lignin-g-P(MMA-co-BA) copolymers are improved significantly by comparing with those of linear P(MMA-co-BA) copolymer counterparts, and the elastic strain recovery is nearly 70%. Lignin-g-P(MMA-co-BA) copolymers exhibit high absorption in the range of the UV spectrum, which might allow for applications in UV-blocking coatings.
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