-
Article
Biomedical Polymers—Escort for Human Health
-
Article
Special Issue: Biomedical Polymers
-
Article
Copolymerization of PO/CO2 and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure
Copolymerization of propylene oxide (PO)/carbon dioxide (CO2) and lactide (LA) is achievable to form new copolymers, combining the advantages of both poly(propylene carbonate) (PPC) and polylactide (PLA). In this...
-
Article
Effect of Exogenous Carboxyl and Hydroxyl Groups on Pyrolysis Reaction of High Molecular Weight Poly(L-Lactide) under the Catalysis of Tin
The effect of exogenous hydroxyl, carboxyl groups and/or Sn2+ on pyrolysis reactions of poly(L-lactide) (PLLA) was investigated by thermogravimetric analysis (TGA). The activation energy (Ea) of pyrolysis reactio...
-
Article
The Effect of Oxygen to Salen-Co Complexes for the Copolymerization of PO/CO2
A series of Salen-Co(II) complexes were synthesized to study the effect of O2 on the catalytic performance of Salen-Co complexes for the copolymerization of PO/CO2. The Salen-Co(II) complexes showed low activity ...
-
Article
Influence of Chain Architectures on Crystallization Behaviors of PLLA Block in PEG/PLLA Block Copolymers
The effect of the architecture of poly(ethylene glycol)/poly(L-lactide) (PEG/PLLA) block copolymers on the non-isothermal crystallization behaviors of PLLA blocks was investigated by differential scanning calo...
-
Article
Enolic Schiff Base Zinc Amide Complexes: Highly Active Catalysts for Ring-Opening Polymerization of Lactide and ε-Caprolactone
A series of zinc silylamido complexes based upon NNO tridentate enolic Schiff base framework have been synthesized and characterized. These complexes were tested for the ring opening polymerization of lactide and...
-
Article
Salen-iron complexes: Synthesis, characterization and their reactivity with lactide
Schiff-base metal complexes as efficient catalysts are widely used in ring-opening polymerization of cycle esters. The salen Fe complexes were formed with their excellent biocompatibility and less toxicity. A ...
-
Article
Poly(β-cyclodextrin)-mediated polylactide-cholesterol stereocomplex micelles for controlled drug delivery
A series of host-guest interaction-adjusted polylactide stereocomplex micelles was prepared via the self-assembly of 4-armed poly(ethylene glycol)-block-poly(L-lactide/D-lactide)-cholesterol (4-armed PEG-b-PLLA/P...
-
Article
Effects of molecular weight on the crystallization and melting behaviors of poly(L-lactide)
In this study, a series of monodispersed poly(L-lactide) (PLLA) were synthesized by the ring-opening polymerization with Schiff base aluminum catalyst, and the effects of the number-average molecular weight (M ...
-
Article
Doxorubicin-loaded PLGA microparticles with internal pores for long-acting release in pulmonary tumor inhalation treatment
Doxorubicin (DOX) loaded poly(lactic-co-glycolic acid) (PLGA) microparticles with internal pores (MP-D) were developed for long-acting release in pulmonary inhalation treatment. The PLGA microparticles exhibited ...
-
Article
Polylysine-modified polyethylenimines as siRNA carriers for effective tumor treatment
Polyethylenimine-poly(L-lysine) (PEI-PLL) copolymer was synthesized via ring-opening polymerization of L-lysine N-carboxyanhydride (Lys(Z)-NCA) initiated by PEI. The complexation of PEI-PLL with siRNA was studied...
-
Article
Cisplatin-loaded poly(L-glutamic acid)-g-methoxy poly(ethylene glycol) nanoparticles as a potential chemotherapeutic agent against osteosarcoma
Herein, cisplatin-loaded poly(L-glutamic acid)-g-methoxy poly(ethylene glycol) nanoparticles were evaluated as a potential chemotherapeutic agent against osteosarcoma by using alone or with an iRGD (internalizing...
-
Article
Prevention of postoperative tendon adhesion by biodegradable electrospun membrane of poly(lactide-co-glycolide)
An electrospun poly(lactide-co-glycolide) (PLGA) membrane was prepared and used to perform the anti-adhesion of Achilles tendon. Throughout the experiments, the membrane showed an appropriate degradation rate, an...
-
Article
Biodegradable thermogel as culture matrix of bone marrow mesenchymal stem cells for potential cartilage tissue engineering
Poly(lactide-co-glycolide)-poly(ethylene glycol)-poly(lactide-co-glycolide) (PLGA-PEG-PLGA) triblock copolymer was synthesized through the ring-opening polymerization of LA and GA with PEG as macroinitiator and s...
-
Article
In vivo degradation behavior of porous composite scaffolds of poly(lactide-co-glycolide) and nano-hydroxyapatite surface grafted with poly(L-lactide)
The biodegradable porous composite scaffold, composed of poly(lactide-co-glycolide) (PLGA) and hydroxyapatite nanoparticles (n-HAP) surface-grafted with poly(L-lactide) (PLLA) (g-HAP) (g-HAP/PLGA), was fabricated...
-
Article
Photo cross-linked biodegradable hydrogels for enhanced vancomycin loading and sustained release
A series of biodegradable hydrogels based on dextran and poly(L-glutamic acid) were fabricated for effective vancomycin loading and release. The preparation of hydrogels was simply achieved by photo cross-link...
-
Article
Confined lamella formation in crystalline-crystalline poly(ethylene oxide)-b-poly(ɛ-caprolactone) diblock copolymers
The real time and in situ investigation of the crystallization process and structure transitions of asymmetric crystalline-crystalline diblock copolymers from the melt was performed with synchrotron simultaneous ...
-
Article
Preparation of poly(serine ester)s by ring-opening polymerization of N-trityl serine lactone under catalysis of ZnEt2
Poly(N-trityl serine lactone)(PTSL) and mPEG-block-poly(N-trityl serine lactone)(mPEG-b-PTSL, PEG=polyethylene glycol) were synthesized via the ring-opening polymerization of N-trityl serine lactone(TSL) with die...
-
Article
Crystallization behavior of polylactide on highly oriented polyethylene thin films
The crystalline structure and morphology of the PLA crystallized isothermally from the glassy state on highly oriented PE substrates at 130°C were investigated by means of optical microscopy, AFM and X-ray dif...
