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Wang, W.-W., Jiang, L., Ren, W.-Y., Zhang, C.-M., Man, C.-Z., Nguyen, T.-P. & Dan, Y. (2016) The crystallinity, thermal properties and microscopic morphology of di-block copolymers of L-lactide and several acrylates. RSC Adv. 6 31934–31946. 
Added by: Richard Baschera (2016-05-11 06:59:05)
Type de référence: Article
DOI: 10.1039/c5ra24327k
Numéro d'identification (ISBN etc.): 2046-2069
Clé BibTeX: Wang2016
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Mots-clés: atrp, bifunctional initiator, combination, diblock copolymer, dual initiator, glass-transition temperature, polylactide pla, ring-opening polymerization, rop, transfer radical polymerization
Créateurs: Dan, Jiang, Man, Nguyen, Ren, Wang, Zhang
Collection: RSC Adv.
Consultations : 9/449
Indice de consultation : 2%
Indice de popularité : 0.5%
In this paper a series of di-block copolymers of L-lactide and (meth) acrylate [(M) A, representing methyl methacrylate, tert-butyl acrylate and 2-ethylhexyl acrylate] were synthesized by varying the molecular weight of the polylactide (PLLA) macroinitiator and the structure of the (meth) acrylate monomers. The glass transition temperature, crystallinity and thermal stability of copolymers with different poly(meth) acrylate [P(M) A] blocks were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The results indicated that the glass transition temperature of the copolymers could be tuned by changing the chain structure and chain length of the P(M) A blocks. Besides, the crystallization of the copolymers was inhibited by the introduction of P(M) A blocks, and the toughness of the copolymers could be tuned. It is noted that the thermal stability of the copolymers depended on the type of P(M) A blocks and the PLLA/P(M) A blocks ratio. Furthermore, the microphase separation of copolymers in thin films was observed by atomic force microscopy (AFM) and scanning electron microscopy (SEM), and the results showed that the composition of copolymers significantly affected the surface morphology of the block copolymer thin films.
Added by: Richard Baschera  
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