Cellulose (Nano)Composites

Review Polymer Science

Poly(3-hydroxybutyrate) Nanocomposites with Cellulose Nanocrystals

Catalina Diana Usurelu et al.

Summary: Poly(3-hydroxybutyrate) (PHB) is a promising material for packaging and biomedical fields due to its biodegradability, biocompatibility, and good properties. The addition of cellulose nanocrystals (CNCs) can improve its weaknesses and enhance its performance. Choosing the right processing technology and surface treatment for CNCs is crucial for obtaining good properties and interfacial adhesion in the resulting nanocomposites.

POLYMERS (2022)

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Article Polymer Science

Microfibrillated Cellulose Grafted with Metacrylic Acid as a Modifier in Poly(3-hydroxybutyrate)

Marius Stelian Popa et al.

Summary: This work proposes a new method for obtaining PHB/MC composites with more balanced properties by adjusting the surface of MC to enhance its compatibility with the PHB matrix. The modified celluloses showed good thermal stability and acted as nucleating agents in PHB, increasing its crystallinity. The dual role of the SIMA-MA treatment as both compatibilizer and plasticizer was highlighted through mechanical and rheological measurements.

POLYMERS (2021)

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Article Polymer Science

Multiresponsive Cellulose Nanocrystal Cross-Linked Copolymer Hydrogels for the Controlled Release of Dyes and Drugs

Yuchen Jiang et al.

Summary: A multiresponsive hydrogel based on poly(acrylic acid-co-acrylamide) was reported, capable of swelling and shrinking induced by various stimuli such as temperature, pH, and salt concentration, suitable for water purification and drug release applications.

POLYMERS (2021)

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Article Polymer Science

Biosynthesis of Polyhydroxybutyrate with Cellulose Nanocrystals Using Cupriavidus necator

Giyoung Shin et al.

Summary: The study demonstrates that using cellulose nanocrystals (CNCs) to produce PHB-CNC nanocomposites can improve the insufficient physical properties of PHB. By pointing out the extraction of natural polyesters from Cupriavidus necator fermentation and combining with the infrared spectroscopy results of CNCs, the feasibility of this preparation method is validated.

POLYMERS (2021)

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Review Polymer Science

Nanocelluloses: Sources, Pretreatment, Isolations, Modification, and Its Application as the Drug Carriers

Valentino Bervia Lunardi et al.

Summary: The concept of 'Back-to-nature' is widely adopted in various industries, particularly in the pharmaceutical industry. Natural polymers such as cellulose are developed to replace synthetic chemicals, with nanocelluloses being utilized as nanocarriers in drug delivery systems at an advanced stage. Various modifications and functionalizations have been conducted to enhance the performance of nanocellulose in drug delivery, leading to the development of a new generation of carriers with specific recognition characteristics.

POLYMERS (2021)

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Article Polymer Science