Innovation & R&D
Driving the future of specialty chemistry through relentless research, world-class laboratories, and proprietary technologies — from Qingdao to the world.
Commitment to Research & Development
At Shandong Do Sender Chemicals, innovation is not a department — it is the foundation of everything we do. Our sustained R&D investment drives breakthroughs in organic peroxides, azo initiators, metal alkyls, and specialty additives that define industry standards.
With a dedicated R&D center in Qingdao, partnerships with leading Chinese universities, and a team of over 60 research scientists, we transform molecular challenges into commercial solutions.
Invested in R&D
& Engineers
& Pending Applications
Collaborations
Laboratory & Team Capabilities
Our R&D center in Qingdao spans 4,000 m² of purpose-built laboratory space, equipped with advanced analytical and synthesis instrumentation.
Synthesis Team
18 chemists specializing in free-radical initiation, organometallic synthesis, and polymerization kinetics
Analytical Team
14 analysts operating DSC, GC-MS, HPLC, and particle-size instrumentation for product characterization
Process Engineering
12 engineers scaling from gram-level synthesis to ton-scale production with safety-first design philosophy
Regulatory & Safety
8 specialists ensuring REACH, GHS, and UN classification compliance across all product lines
Key Analytical & Synthesis Equipment
DSC (Differential Scanning Calorimetry)
SADT & thermal stability
GC-MS (Gas Chromatography – Mass Spectrometry)
Purity & impurity profiling
HPLC (High-Performance Liquid Chromatography)
Assay & residual analysis
Particle Size Analyzer
Laser diffraction & morphology
Reactor Systems (1L–100L)
Automated process development
Accelerating Rate Calorimetry (ARC)
Decomposition kinetics & hazards
Organic Peroxides — Research Focus
Our organic peroxides R&D program is the largest in China's private sector, spanning synthesis, formulation, and application development.
Synthesis & Formulation
Developed a low-temperature crystallization process for MEKP (Methyl Ethyl Ketone Peroxide) that reduces active oxygen content variability from ±15% to ±3%, significantly improving curing consistency in FRP applications.
Active Research Areas
- Novel phlegmatizer systems for high-concentration peroxides (DTBP, DCP)
- Microencapsulation of organic peroxides for controlled-release initiation
- Low-SADT formulations enabling ambient-temperature storage and transport
- EHP (Ethyl 3,3-Dimethylbutyryl Peroxide) stabilization for PVC suspension polymerization
Application Development
Pioneered a dual-cure initiator system combining TBPB (Tert-Butyl Perbenzoate) with MEKP for RTM (Resin Transfer Molding), reducing gel time by 40% while maintaining 95%+ mechanical strength retention.
Application Labs Serve
- Unsaturated polyester resin (UPR) curing optimization
- PVC suspension & mass polymerization kinetics
- Composite manufacturing (SMC/BMC/RTM) process tuning
- Crosslinking of polyethylene (PE-Xa) for wire & cable
AZO Initiators — Research Focus
Our AZO initiators R&D program is among the most advanced in China, focusing on high-purity synthesis, novel derivatives, and polymerization performance.
Synthesis & Purification
Achieved 99.8% purity for AIBN (Azobisisobutyronitrile) through a proprietary recrystallization-solvent system, surpassing the industry benchmark of 99.0%. This enables ultra-precision polymerization for optical-grade PMMA.
Active Research Areas
- Novel AZO esters (AIBME derivatives) with tunable 10-hour half-life temperatures
- Low-dust granulation technology for ABVN and AIBN to reduce explosion risk
- TMSN (2,2'-Azobis(2-methylpropionamidine) dihydrochloride) aqueous solution stabilization
- Continuous-flow synthesis for AZO initiators to improve yield and safety
Polymerization Performance
Developed a proprietary AZO blend (ABVN + AIBME) that achieves 95%+ monomer conversion in vinyl chloride suspension polymerization at 45°C — reducing energy consumption by 20% compared to conventional initiator systems.
Application Research
- Acrylic fiber & acrylic resin polymerization optimization
- PVC K-value control through initiator selection and dosing
- Water-soluble AZO initiators for enhanced oil recovery polymers
- Photoinitiator-azo hybrid systems for UV-curable coatings
Other Products — Research Focus
Beyond organic peroxides and AZO initiators, we invest in specialty chemistries that complement our core portfolio.
Metal Alkyls
Developed a triethylaluminum (TEA) formulation with 40% lower alkyl halide impurities than standard grades, critical for Ziegler-Natta catalyst performance in polyolefin production.
Research Focus
- Ultra-high-purity trialkylaluminum for polyolefin catalysts
- Methylaluminoxane (MAO) for metallocene catalyst activation
- Safe-handling formulations with integrated quench protocols
- Diethylaluminum chloride (DEAC) for ethylene oligomerization
Polymer & PVC Additives
Created a lead-free PVC heat stabilizer based on calcium-zinc hydrotalcite synergism, achieving equivalent thermal stability time (TST) at 180°C as traditional lead-based systems — enabling REACH-compliant PVC profiles.
Research Focus
- Lead-free & cadmium-free PVC heat stabilizer systems
- Polymer processing aids for improved melt flow and surface finish
- Reactive flame retardants for thermoset composites
- Bio-based plasticizer alternatives for flexible PVC
Proprietary IP Portfolio
Our intellectual property is the product of years of focused R&D — each patent represents a commercially viable innovation.
Low-Temperature MEKP Crystallization Process
CN Patent ZL2022 1 058XXXX.XReduces active oxygen variability to ±3%, ensuring consistent gel times in FRP manufacturing. Licensed to 3 major composite producers.
Microencapsulated Organic Peroxide System
CN Patent ZL2023 1 032XXXX.XControlled-release peroxide particles for precise initiation timing in multi-stage polymerization. Reduces premature decomposition by 90%.
Ultra-High-Purity AIBN Recrystallization Method
CN Patent ZL2021 1 089XXXX.XProprietary solvent system achieving 99.8% AIBN purity — enabling optical-grade PMMA with <0.01% haze. Industry benchmark was 99.0%.
AZO Blend for Low-Temp PVC Polymerization
CN Patent ZL2023 1 076XXXX.XABVN + AIBME blend achieving 95%+ VCM conversion at 45°C, reducing energy consumption by 20% in PVC suspension polymerization.
Low-Impurity TEA Formulation for Polyolefin Catalysts
CN Patent ZL2022 1 113XXXX.X40% reduction in alkyl halide impurities vs. standard TEA — critical for Ziegler-Natta catalyst activity and polyolefin quality.
Lead-Free Ca-Zn-Hydrotalcite PVC Stabilizer
CN Patent ZL2024 1 015XXXX.XReplaces lead-based stabilizers with equivalent TST at 180°C — enabling REACH-compliant rigid PVC profiles and pipes.
Innovation Milestones
Key achievements in our journey from a regional chemical supplier to an innovation-driven specialty chemicals company.
Partner With Our R&D Team
Whether you need custom synthesis, application development support, or co-development partnerships — our research team is ready to collaborate.