2021
DOI: 10.1002/macp.202100134
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Abstract: Multifunctional branched/hyperbranched copolymers from poly(vinyl alcohol) (PVA) and citric acid (CA) are synthesized by varying the mole compositions of PVA and CA and are used as a prospective vehicle for encapsulation and release of bioactive molecules and as a potential scaffold for cell adhesion and growth. The branched architecture is established from spectroscopy and rheological measurements. All the copolymers have shown a lower hydrodynamic size and viscosity than the linear, high molecular weight PVA… Show more

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Cited by 1 publication
(39 citation statements)
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“…Around 200°C, there is additional mass loss up to ~8% in P4, 14% in P6, and 20% in P8, which is inversely correlated to citric acid content in the monomer feed ratio. Increased citric acid content in the monomer feed ratio increases pre-polymer chain branching 68 . Accordingly, the mass loss at 200°C is attributed to thermal degradation of lesser branched, lower molecular weight pre-polymer chains.…”
Section: Pre-polymer Synthesis and Characterizationmentioning
confidence: 99%
“…Around 200°C, there is additional mass loss up to ~8% in P4, 14% in P6, and 20% in P8, which is inversely correlated to citric acid content in the monomer feed ratio. Increased citric acid content in the monomer feed ratio increases pre-polymer chain branching 68 . Accordingly, the mass loss at 200°C is attributed to thermal degradation of lesser branched, lower molecular weight pre-polymer chains.…”
Section: Pre-polymer Synthesis and Characterizationmentioning
confidence: 99%