Synthesis and microphase separation of polystyrene-b-polylactide block copolymers aimed at preparation of ordered nanoparticle/block copolymer hybrid materials
Best source
All available sources
- Authors:
- XIAODONG HOU
QIAOBO LI
AMIN CAO - Author Affiliations:
- Laboratory for Polymer Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
- Source:
- Polymer international. 63(7):1159-1167
- Publication Date:
- 2014-01-01
- Language:
- English
- Abstract:
- A new nanoparticle/block copolymer (NP/BCP) hybrid material combining the unique properties of BCP poly(styrene)-b-poly(D-lactide) (PS-b-PDLA) and inorganic NP quantum dots CdSe was developed. A systematic study on the microphase separation of a series of PS-b-PDLAs by small-angle X-ray scattering showed that the degree of order of the separated microdomains depended on the initial state of the BCP and the measurement temperature and can be improved through isothermal crystallization of PDLA, thermal annealing and shear field etc. Incorporating a small amount of NPs into the BCP matrix can improve the mobility of the polymer chains and thus promote self-assembly of the BCP, which leads to hierarchically ordered structures. Excess NPs, however, cannot be completely incorporated into the PDLA domains, resulting in the phase transformation of the BCP, destruction of the ordered structure and even macroscopic phase separation due to the aggregation of NPs. An important observation is that stereocomplexation between PDLA and poly(L-lactide) could provide a driving force to promote microphase separation of the BCP. The strategy presented in the current work has potential applications for developing highly ordered NP/BCP hybrid materials.
- Notes:
- Polymer industry, paints, wood
- Subjects:
- Polymers, paint and wood industries
Polymères, industries des peintures et bois
Sciences exactes et technologie
Exact sciences and technology
Sciences appliquees
Applied sciences
Industrie des polymeres, peintures, bois
Polymer industry, paints, wood
Technologie des polymères
Technology of polymers
Formes d'application et semiproduits
Forms of application and semi-finished materials
Matériaux composites
Composites
Copolymère séquencé
Block copolymer
Copolímero secuencia
Cristallinité
Crystallinity
Cristalinidad
Cristallisation isotherme
Isothermal crystallization
Cristalización isotérmica
Effet concentration
Concentration effect
Efecto concentración
Etude expérimentale
Experimental study
Estudio experimental
Interaction intermoléculaire
Intermolecular interaction
Interacción intermolecular
Lactone copolymère
Lactone copolymer
Lactona copolímero
Lactone polymère
Lactone polymer
Lactona polímero
Matériau composite
Composite material
Material compuesto
Morphologie
Morphology
Morfología
Nanocomposite
Nanocompuesto
Point quantique
Quantum dot
Punto cuántico
Polymère optiquement actif
Optically active polymer
Polímero ópticamente activo
Préparation
Preparation
Preparación
Styrène copolymère
Styrene copolymer
Estireno copolímero
Séléniure de cadmium
Cadmium selenides
Séparation phase
Phase separation
Separación fase
Traitement surface
Surface treatment
Tratamiento superficie
Lactide copolymère
Lactide polymère
Stéréocomplexe
block copolymer
chirality
hybrid materials
nanoparticle
quantum dot - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Polymer international
- Volume:
- 63
- Issue:
- 7
- Page Start:
- 1159
- Page Count:
- 9
- ISSN:
- 09598103
- Publisher:
- Chichester: Wiley, 2014.
- Document Type:
- Article
- Physical Description:
- print, 57 ref
